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HỘI NGHỊ VẬT LÝ LÝ THUYẾT TOÀN QUỐC LẦN THỨ 35 

(Tp. Hồ Chí Minh, 02 – 06/8/2010) 

Chủ tịch danh dự 

Nguyễn Văn Hiệu (VKHCN VN) 

Chủ tịch Hội nghị 

Nguyễn Ái Việt (VVL HN) 

Nguyễn Viết Ngoạn (ĐHSG Tp. HCM) 

Ban Tổ chức 

Nguyễn Hồng Quang (VVL HN), Trưởng ban 

Hoàng Dũng (ĐHQG Tp. HCM), Phó Trưởng ban 

Lê Văn Hoàng (ĐHSP Tp. HCM), Phó Trưởng ban 

Bạch Thành Công (ĐHKHTN HN) 

Hồ Trung Dũng (VVL Tp. HCM) 

Trương Minh Đức (ĐHSP Huế) 

Phó Thị Nguyệt Hằng (ĐHBK HN) 

Trịnh Xuân Hoàng (VVL HN) 

Đinh Xuân Khoa (ĐH Vinh) 

Võ Văn Lộc (ĐHSG Tp. HCM) 

Đặng Văn Soa (ĐHSP HN) 

Lưu Thị Kim Thanh (ĐHSP HN II) 

Hoàng Anh Tuấn (VVL HN) 

Ban chương trình 

Nguyễn Văn Liễn (VVL HN), Trưởng ban 

Nguyễn Bá Ân (VVL HN) 

Đàm Hiếu Chí (ĐHKHTN HN) 

Võ Văn Hoàng (ĐHBK Tp. HCM) 

Vũ Văn Hùng (ĐHSP HN) 

Nguyễn Quốc Khánh (ĐHKHTN Tp. HCM) 

Hoàng Ngọc Long (VVL HN) 

Đỗ Hoàng Sơn (ĐHKHTN Tp. HCM) 

Hội nghị Vật lý lý thuyết toàn quốc lần thứ 35 

1 

2 

Tp. Hồ Chí Minh, 02-06/8/2010 

Ban Tổ chức địa phương 

Võ Văn Lộc (ĐHSG Tp. HCM), Trưởng ban 

Võ Thành Lâm (ĐHSG Tp. HCM), Phó trưởng ban 

Lê Thị Thanh Thủy (ĐHSG Tp. HCM), Thư ký 

Cơ quan tổ chức 

Đại học Sài Gòn, Tp. Hồ Chí Minh 

Trung tâm Vật lý lý thuyết, Viện Vật lý, Hà Nội 

Phụ trách biên tập kỷ yếu Hội nghị 

Nguyễn Toàn Thắng (VVL HN) 

Thư ký Hội nghị 

Đào Thị Hồng (VVL HN) 

Cơ quan tài trợ 

Đại học Sài Gòn, Tp. Hồ Chí Minh 

Trung tâm Vật lý lý thuyết và Viện Vật lý, Hà Nội 

Viện Khoa học và Công nghệ Việt Nam 

Trường Đại học Sư phạm Tp. Hồ Chí Minh 

Trường Đại học Khoa học Tự nhiên Tp. Hồ Chí Minh 

Đại học Vinh 


3 

4 

Tp. Hồ Chí Minh, 02-06/8/2010

Chương trình khung 

Chương trình chi tiết 

CHƯƠNG TRÌNH HỘI NGHỊ 

Thứ Hai, ngày 02 tháng 08 năm 2010 

BUỔI SÁNG: 

08h00 – 09h00: 

08h00 – 08h30: 

09h00 – 10h00: 

10h00 – 10h30: 

Đăng ký đại biểu 

Văn nghệ 

Khai mạc 

Nghỉ giữa buổi, chụp ảnh lưu niệm 

10h30 – 11h30: Phần trình bày báo cáo mời 

Mỗi báo cáo trình bày 30’ 

Chủ tọa: Hoang Dung 

Bruce McKellar, Neutrinos, Scalars and Dark Energy 

Người trình bày: Bruce McKellar – Báo cáo mời 

Nguyen Van Hieu and Nguyen Bich Ha, Engineered Spin Chains for 

Perfect Quantum State Transfer 

Người trình bày: Nguyen Van Hieu - Báo cáo mời 

Tiệc chiêu đãi bữa trưa 


5 

6 

Tp. Hồ Chí Minh, 02-06/8/2010 

BUỔI CHIỀU: 

14h00 – 15h00: 

Chủ tọa: Doan Nhat Quang 

Phần trình bày báo cáo miệng 


Ho Trung Dung, Detecting Entanglement with non‐Hermitian 

Operators 

Người trình bày: Ho Trung Dung 

Dinh Xuan Khoa, Nguyen Tien Dung, Pham Van Trong, and Nguyen Huy 

Bang, Construction of Potential Energy Curves for Diatomic 

Molecules by the Inverted Perturbation Approach. 

Người trình bày: Nguyen Huy Bang 

Ho Quang Quy, Bui Sy Khiem, Nguyen Thi Ha Trang, Chu Van Lanh, 

Distributuion of the Laser Intensity and the Force acting on 

Dielectric Nano‐Particle in the 3D‐Optical Trap using 

Counter‐propagating Pulsed Laser Beams 

Người trình bày: Ho Quang Quy 

15h00 – 16h00: Nghỉ giữa buổi và Phần trình bày báo cáo treo 

I 

Chủ tọa: Nguyen Nhu Dat 

[P-1] Le Phuong Thao and Nguyen Dinh Dung, Inelastic Scattering of 

Polarized Neutrons in Magnetic Helicoidal Structure Crystal 

in Presence of Radiation and Absorption of Phonon 

Người trình bày: Le Phuong Thao 

[P-2] Trieu Quynh Trang, Nguyen Thi Thu Huong, and Ha Huy Bang, 

Impact of CP Phases on the Gluino Production Process in 

Electron‐ Positron Annihilation 

Người trình bày: Trieu Quynh Trang 


7 

[P-3] Vu Xuan Chung and Nguyen Dinh Dung, Scattering of Polarized 

Neutrons in Ferromagnetic Crystal in Presence of Radiation 

and Absorption of Phonon 

Người trình bày: Vu Xuan Chung 

[P-4] P. V. Dong, H. N. Long, D. V. Soa, and N. H.Thao, Photon‐ 

Radion Conversion Cross‐Sections in External 

Electromagnetic Field 

Người trình bày: Dang Van Soa/Hoang Ngoc Long 

[P-5] Dinh Nhu Thao and Tran Thien Lan, 3D Monte Carlo 

Simulation of GaAs p‐i‐n Diodes taking into account the 

near Coulomb Interaction between Electrons and Holes 

Người trình bày: Tran Thien Lan 

[P-6] Pham Quang Hung and Nguyen Nhu Le, The Higgs Effective 

Potential in the Electroweak‐Scale Right‐Handed Neutrinos 

Model 

Người trình bày: Nguyen Nhu Le 

[P-7] Dao Vong Duc and Nguyen Thi Ha Loan, Generally Covariant 

Duality and Gravitational Scalar Field 

Người trình bày: Nguyen Thi Ha Loan 

[P-8] Tran Huu Phat, Nguyen Van Long, Nguyen Tuan Anh, Le Viet Hoa, 

and Nguyen Chinh Cuong, The Energy of the Asymmetric Nuclear 

Matter in the four‐Nucleon Model 

Người trình bày: Nguyen Van Long 

[P-9] N.T. Thuong, N.V. Minh, N.N. Tuan & V.N. Tuoc, Density 

Functional Based Tight Binding Study on Wurzite Core‐shell 

Nanowires Heterostructures ZnO/ZnS. 

Người trình bày: Nguyen Thi Thuong 

[P-10] Nguyen Tri Lan, Ginzburg – Landau Functional for the 

Coexistence of many Phases in many – Body Systems 

Người trình bày: Nguyen Tri Lan 

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Tp. Hồ Chí Minh, 02-06/8/2010

[P-11] Tran Nguyen Dung, Conductance and Shot Noise in gate‐ 

Controlled Zigzag Graphene Nanoribbons 

Người trình bày: Tran Nguyen Dung 

[P-12] Do Manh Hung, Nguyen Quang Bau, and Nguyen Dinh Nam, 

Parametric Transformation and Parametric Resonance of 

Confined Acoustic Phonons and Confined Optical Phonons 

in Quantum Wells 

Người trình bày: Do Manh Hung 

[P-13] Le Hoang Anh, Ho Sy Ta, and Do Van Nam, Effects of 

Magnetic Field on the Electronic Structure and Transport 

Properties of Graphene and Graphene Nanoribbons 

Người trình bày: Le Hoang Anh 

[P-14] Nguyen Van Nghia, Tran Thi Thu Huong, Nguyen Quang Bau, The 

Nonlinear Acoustoelectric Effect in a Cylindrical Quantum 

Wire with an Infinite Potential 

Người trình bày: Nguyen Van Nghia 

[P-15] Nguyen Viet Minh, Electron Mobility in an Unintentionally 

Doped GaN/AlGaN Surface Quantum Well 

Người trình bày: Nguyen Viet Minh 

[P-16] Pham Thi Thanh Nga and Nguyen Toan Thang, Supersolids of 

Hard Core ‐ Bosons on a Triangular Lattice. 

Người trình bày: Pham Thi Thanh Nga 

[P-17] V.T Hoa, T.T.T. Van, T.T. Thao, P.D. Anh, N.V. Thanh, and N.A. Viet 

, Simple Model for the Indirect Exciton in a Strong Magnetic 

Field 

Người trình bày: Phan Duc Anh 

[P-18] Tran Cong Phong , Le Thi Thu Phuong, Tran Dinh Hien, Rate of 

Phonon Excitation and Conditions for Phonon Generation in 

Cylindrical Quantum Wires 

Người trình bày: Tran Cong Phong 


9 

[P-19] Nguyen Van Hung, Nguyen Cong Toan, Tong Sy Tien, Nguyen Bao 

Trung, A Thermodynamic Lattice Theory on Lindemann’s 

Melting Temperature and Eutectic Point of FCC Binary 

Alloys 

Người trình bày: Nguyen Cong Toan 

[P-20] Nguyen Quang Hoc and Tran Quoc Dat, Specific Heat at 

Constant Volume for Molecular Cryocrystals of Nitrogen 

Type 

Người trình bày: Tran Quoc Dat 

[P-21] Vu Van Hung, Hoang Van Thai, and Dinh Quang Vinh, Study of 

Elastic Properties of Quantum Crystals by Statistical 

Moment Method 

Người trình bày: Hoang Van Thai 

[P-22] Vu Van Hung, Le Dinh Hong, and Nguyen Thu Ha, Study of 

Thermodynamic Properties of Zirconium under High 

Pressure 

Người trình bày: Le Dinh Hong 

[P-23] Nguyen Thanh Hai, Investigation of Thermodynamic 

Properties Liquid Cu – Ni Alloys using Moment Method 

Người trình bày: Nguyen Thanh Hai 

[P-24] Truong Minh Duc and Ngo Thi Thuy Trang, Higher‐order 

Properties of two‐Mode Photon‐added Displaced Squeezed 

States 

Người trình bày: Ngo Thi Thuy Trang 

[P-25] Van Cao Long, Wieslaw Leoński, and Khoa Doan Quoc, 

Photoelectron Spectra Induced by Broad‐Band Chaotic Light 

from a Structured Continuum 

Người trình bày: Cao Long Van 

10 

Tp. Hồ Chí Minh, 02-06/8/2010 

[P-26] Wieslaw Leoński, Van Cao Long, and Thuan Bui Dinh, 

Electromagnetically Induced Ionization from Double 

Autoionizing Levels with Lorentzian Continuum 


[P-27] Hoang Van Hung, Le Hai My Ngan, Le Thi Cam Tu, Nguyen Ngoc 

Ty, Le Van Hoang, Tracking the Keto‐Enol Tautomerism Process 

of DNA Base by ultra‐Short Laser Pulses using High 

Harmonic Generation 

Người trình bày: Hoang Van Hung 

[P-28] Ho Quang Quy, Vu Ngoc Sau, Nguyen Van Hoa, Nguyen Thi Thanh 

Tam , Optical Bistable Effect of two‐port Nonlinear Fiber 

Mach‐Zehnder Interferometer 

Người trình bày: Nguyen Thi Thanh Tam 

[P-29] Nguyen Chanh Qui, Pham Hong Phong and Nguyen Vinh Quang, 

Các không gian Sobolev và vấn đề các tích phân chuyển 

động 

Người trình bày: Nguyen Chanh Qui 

[P-30] Nguyen Tien Dung, Dinh Xuan Khoa, Vu Ngoc Sau, Nguyen Thanh 

Vinh, Tran Manh Cuong, and Nguyen Huy Bang, Construction of 

Potential Energy Curve for the 3Pi State of NaLi 

Người trình bày: Nguyen Huy Bang 

[P-31] Nguyen Ngoc Ty and Le Van Hoang, Dynamic Chemical 

Imaging of Molecule N2 by Tomographic Method using High 

Harmonic Generation ‐ Theoretical Analysis of Quality 

Improvement. 

Người trình bày: Nguyen Ngoc Ty 

[P-33] Truong Minh Duc and Nguyen Thi Nguyet, The two‐Mode 

Squeezed Pair Coherent States and their Non‐Classical 

Properties 

Người trình bày: Nguyen Thi Nguyet 

[P-34] Nguyen Tien Dung, Nguyen Van Thinh, Le Canh Trung, Dinh Xuan 

Khoa, and Nguyen Huy Bang, On the Molecular Constants of 

Diatomic Molecules 

Người trình bày: Nguyen Tien Dung 

[P-35] Vu Ngoc Tuoc and Nguyen Viet Minh, Density Functional 

Based Study on Zinc Oxide Nanoparticles 

Người trình bày: Nguyen Viet Minh 

[P-36] Dinh Nhu Thao and Le Hoai Linh, 3D Monte Carlo Simulation 

of Carrier Dynamics and THz Radiation from GaAs p‐i‐n 

Diodes 

Người trình bày: Le Hoai Linh 

[P-37] Nguyen Thu Nhan, Nguyen Thi Thanh Ha, and Pham Khac Hung, 

Accelerated MD Programm using CUDA Technology 

Người trình bày: Nguyen Thu Nhan 

[P-38] Nguyen Thuy Trang, Nguyen Van Chinh, Bach Thanh Cong, and 

Nguyen Hoang Linh, Study on Lattice and Electronic Structure at 

the Surface of BaTiO3 Thin Films by DFT Method 

Người trình bày: Nguyen Van Chinh 

[P-39] Phan Hoang Chuong, Phương trình Schrodinger và phương 

trình truyền nhiệt Chaos 

Người trình bày: Phan Hoang Chuong 

[P-32] Nguyen Phuong Duy Anh, Cao Ho Thanh Xuan, Nguyen Van Hoa, 

Le Van Hoang, Operator Method for Exactly Solving 

Schrodinger Equation for Atoms 

Người trình bày: Nguyen Phuong Duy Anh 


11 

12 

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16h00 – 17h00: Phần trình bày báo cáo miệng 


Chủ tọa: Hoang Ngoc Long 

Piotr Rozmej, Effects of Exotic Shapes on Potential Energy 

Surface of Superheavy Nuclei 

Người trình bày: Piotr Rozmej 

N. Q. Lan and L. C. Tuong, Cosmic Formation and Decaying Dark 

Matter 

Người trình bày: Nguyen Quynh Lan 

Nguyen Vien Tho, To Ba Ha and Nguyen Quoc Hoan, Solutions for 

Yang‐Mills Field with Singular Source Terms and Higher 

Topological Indices 

Người trình bày: To Ba Ha 

Thứ Ba, ngày 03 tháng 08 năm 2010 

BUỔI SÁNG: 

08h30 – 10h00: 

Chủ tọa: Hoang Anh Tuan 


Báo cáo mời 30’, các báo cáo khác 20’ 

Cao Huy Thien, Doan Tri Dung and Tran Thoai Duy Bao, Condensation 

Kinetics of Polaritons in Semiconductor Microcavities 

Người trình bày: Cao Huy Thien – Báo cáo mời 

Nguyen Hong Quang, Nguyen Duong Bo, Nguyen Nhu Dat, Trinh Xuan 

Hoang and Duong Xuan Long, Charged Excitons in Bilayer 

Quantum Dots 

Người trình bày: Nguyen Hong Quang 

Người trình bày: Huynh Vinh Phuc 

Nguyen Thanh Tien, Nguyen Huyen Tung, and Doan Nhat Quang, 

Electron Scattering from Polarization Charges Bound on a 

Rough Interface of Heterostructures 

Người trình bày: Nguyen Huyen Tung 

10h00 – 10h30: 

10h30 – 11h30: 

Chủ tọa: Vu Van Hung 

Nghỉ giữa buổi 



Vu Van Hung, Phan Thi Thanh Hong, and Bui van Khue, Boron and 

Phosphorus Diffusion in Silicon: Interstitial and Vacancy 

Mechanisms 

Người trình bày: Phan Thi Thanh Hong 

Pham DinhTam, Nguyen Quang Hoc, Phung Dinh Phong, and Pham Duy 

Tan, Melting of Metals Cu, Ag and Au under Pressure 

Người trình bày: Pham Dinh Tam 

Ho Khac Hieu, Vu Van Hung, and Nguyen Van Hung, Investigation of 

the EXAFS Cumulants of Silicon and Germanium 

Semiconductors by Statistical Moment Method: Pressure 

Dependence 

Người trình bày: Ho Khac Hieu 

Tran Cong Phong, Huynh Vinh Phuc, Le Thi Thu Phuong, Le Dinh, 

Nonlinear Absorption Line‐Widths in Cylindrical Quantum 

Wires 


13 

14 

Tp. Hồ Chí Minh, 02-06/8/2010 


14h00 – 15h10: 

Chủ tọa: Nguyen Huyen Tung 



Trinh Xuan Hoang, Inferring Amino Acid Interactions in 

Proteins using Maximum Entropy Approach 

Người trình bày: Trinh Xuan Hoang – Báo cáo mời 

Nguyen Anh Tuan, Tran Thi Thuy Nu, Nguyen Van Thanh, Vu Van Khai, 

Shin-ichi Katayama, Nguyen Huy Sinh, Dam Hieu Chi, Computational 

Design of Mn4 Molecules with Strong Intramolecular 

Exchange Coupling 

Người trình bày: Nguyen Anh Tuan 

Tran Phuoc Duy and Vo Van Hoang, Atomic Mechanism of 

Homogeneous Melting of bcc Fe at Limit of Super‐heating 

Người trình bày: Tran Phuoc Duy 

15h10 – 16h20: 

Chủ tọa: Le Van Hoang 

Nghỉ giữa buổi và Phần trình bày báo 

cáo treo II 

[P-40] Dao Vong Duc and Huynh Thi Trang Dai, BRST ‐ Invariant 

String Functional Interaction Lagrangians 

Người trình bày: Dao Vong Duc 

[P-41] L. T. Hue, H. T. Hung, H. N. Long, V. V. Vien, and V. T. H. Yen, 

Renormalization Group and 3‐3‐1 Model with the Discrete 

Flavor Symmetries 

Người trình bày: Ha Thanh Hung 

[P-42] Nguyen Suan Han and Le Thi Hai Yen, The Glauber‐type of 

Representation for the Scattering Amplitude of the Dirac 

Particles on Smooth Potential . 

Người trình bày: Le Thi Hai Yen 

[P-43] Luu Thi Kim Thanh, Tran Thai Hoa, Nguyen Dinh Tuan, Duong Dai 

Phuong, The Specific Heat CV of the System of the Q‐ 

Deformed Harmonic Oscillarors 

Người trình bày: Luu Thi Kim Thanh 

[P-44] Phu Chi Hoa, Vuong Huu Tan, Pham Ngoc Son, Huynh Xuan Lam, 

Calculation of Thermal and Epithermal Neutron Selfshielding 

Factors Using the Monte Carlo Code –MCNP 

Người trình bày: Pham Ngoc Son 

[P-45] Tran Thai Hoa, Luu Thi Kim Thanh, Mai Thi Linh Chi, Luong Khanh 

Toan, The Applications of Q‐Deformed Statistics in 

Phenomenon of Bose‐Einstein Condensation for the Q‐ 

Deformed Gases 

Người trình bày: Tran Thai Hoa 

[P-46] Vo Van On, Quasars Can just Be White Holes in the 

Vector Model for Gravitational Field 

Người trình bày: Vo Van On 

[P-47] Vu Xuan Bach and Nguyen Dinh Dung, Inelastic Scattering of 

Polarized Neutrons in Paramagnetic Crystal in Presence of 

Radiation and Absorption of Phonon 

Người trình bày: Vu Xuan Bach 

[P-48] Le Dinh, Le Quoc Anh, and Tran Cong Phong, Influence of 

Phonon Confinement on Absorption Power and Line‐Width 

in a Free‐Standing Gaas Quantum Wire 

Người trình bày: Le Quoc Anh 


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Tp. Hồ Chí Minh, 02-06/8/2010

[P-49] Nguyen Nhu Dat, Frequency‐Dependent Linear and Non‐ 

Linear Response Properties of Semiconductor Quantum 

wires 

Người trình bày: Nguyen Nhu Dat 

[P-50] Le Tuan and Nguyen Thanh Tien, Electron Scattering from 

Polarization Charges Bound on a Rough Interface of 

Uniformly‐Doped ZnO/Zn1‐xMgxO Heterostructure 

Người trình bày: Le Tuan 

[P-51] Do Phuong Lien and Nguyen Anh Tuan, The Magnetic Casimir 

Effect between two Parallel Ferromagnetic Plates 

Người trình bày: Nguyen Anh Tuan 

[P-52] Luong Van Tung, Ngo Thi Thanh Ha, Nguyen Thi Thanh Nhan, Le 

Thi Thu Phuong, Nguyen Quang Bau, The Dependence of the 

Parametric Transformation Coefficient of Confined Acoustic 

and Confined Optical Phonons in the Rectangular Quantum 

Wire 

Người trình bày: Nguyen Thi Thanh Nhan 

[P-53] Tran Thi Hai, Nguyen Trung Hong, Nguyen Huyen Tung, Effect 

from Doping of Quantum Wells on Enhancement of the 

Mobility Limited by One‐Interface Roughness Scattering 

Người trình bày: Tran Thi Hai 

[P-54] Truong Van Tuan and Nguyen Quoc Khanh, Độ Linh Động và 

Điện Trở của Khí Điện Tử trong Cấu Trúc Dị Thể 

AlGaAs/GaAs ở Nhiệt Độ Khác Không 

Người trình bày: Truong Van Tuan 

[P-55] Vo Thanh Lam, Luong Van Tung, and Tran Cong Phong, 

Electrophonon Resonance in Compositional Semiconductor 

Superlattices 

Người trình bày: Vo Thanh Lam 

[P-56] Vo Van Tai and Nguyen Quoc Khanh, Độ Linh Động và Điện 

Trở của Khí Điện Tử trong Giếng Lượng Tử SiGe/Si/SiGe ở 

Nhiệt Độ Khác Không 

Người trình bày: Vo Van Tai 

[P-57] Vu Kim Thai and Hoang Anh Tuan, Two Band Model for 

Diluted Magnetic Semiconductors: Study of the 

Ferromagnetic Transition Temperature 

Người trình bày: Vu Kim Thai 

[P-58] Vu Van Hung, Dang Thanh Hai and Le Thi Binh, Melting Curve 

of Metals: Pressure Dependence 

Người trình bày: Dang Thanh Hai 

[P-59] Nguyen Quang Hoc and Dinh Quang Vinh, Atomic Radii of 

Noble Gas Elements in Condensed Phases 

Người trình bày: Dinh Quang Vinh 

[P-60] Nguyen Thu Nhan and Pham Khac Hung, Structural and 

Dynamics Properties of Lithium Silicate 

Người trình bày: Nguyen Thu Nhan 

[P-61] Pham DinhTam, Nguyen Quang Hoc, Le Tien Hai, and Pham Duy 

Tan, Order – Disorder Phase Transition in Cu3Au under 

Pressure 

Người trình bày: Pham Dinh Tam 

[P-62] Vu Van Hung, Le Thi Mai Thanh, and K. Masuda-Jindo, Study of 

Elastic Properties of CeO2 by Statistical Moment Method 

Người trình bày: Vu Van Hung 

[P-63] Dinh Xuan Khoa, Pham Quoc Linh, Nguyen Van Thinh, Nguyen Tien 

Dung, Le Canh Trung, and Nguyen Huy Bang, Calculation of 

Vibrational Intensity Distribution for the 4Pi ‐1Sigma Band 

of NaLi 

Người trình bày: Nguyen Tien Dung 


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Tp. Hồ Chí Minh, 02-06/8/2010 

[P-64] Nguyen Van Hop, Entanglement Dynamics of Three‐qubit 

Chain with Decoherence 

Người trình bày: Nguyen Van Hop 

[P-65] Phan Hoang Chuong, Chuyển động tương đối và chuyển 

động Chaos 

Người trình bày: Phan Hoang Chuong 

[P-66] Van Cao Long, Wieslaw Leo ski and Khoa Doan Quoc, 

Photoelectron Spectra Induced by Broad‐Band Chaotic Light 

from a Structured Sontinuum 


[P-67] Nguyen Hoang Minh Tri, Vo Phuoc Huy, Dinh Xuan Khoa, Le Van 

Doai, Hoang Hong Khue, and Nguyen Huy Bang, Influences of the 

Coupling Field on EIT Formation of the Three‐Level Lambda 

Configuration of Rb 87 

Người trình bày: Le Van Doai 

[P-68] Le Van Hoang and Nguyen Thanh Son, Generalization of 

Dirac and Yang monopoles for 9‐dimensional Space 

Người trình bày: Le Van Hoang 

[P-69] Vy Thi Ha My, Vu Thu Huong, Chu Thuy Anh, To Thi Thao, Ngo Van 

Thanh, and Nguyen Ai Viet, On the Information Problem of DNA 

in the Denaturation Process 

Người trình bày: Vy Thi Ha My 

[P-70] Phan Thi An Nhan, Pham Hong Phong, and Nguyen Vinh Quang, 

Các không gian Sobolev và vấn đề giá trị trung bình của toán 

tử vật lý 

Người trình bày: Phan Thi An Nhan 

[P-71] Hui-Min Lin and Chia-Chu Chen, Possibility of Entanglement 

Transferal in Uniform Electric Field 

Người trình bày: Chia-Chu Chen 


19 

[P-72] T. D. Thanh, L. V. Nam, D. N. Nghia, and N. H. Cong, Quantum 

Interference Effects in Resonance Fluorescence Spectra of a 

Four‐Level Atom Damped by a Broadband Squeezed 

Vacuum 

Người trình bày: Thai Doan Thanh 

[P-73] Tran Minh Hien and Ho Trung Dung, Local‐Field Correction in 

the Strong Atom‐Field Coupling Regime 

Người trình bày: Tran Minh Hien 

[P-74] Vu Ngoc Sau, Doan Hoai Son, Nguyen Van Phu, Nguyen Huy Bang, 

Cao Long Van, and Nguyen Minh Hai, Soliton Solutions of Higherorder 

Nonlinear Schrodinger Equation 

Người trình bày: Vu Ngoc Sau 

[P-75] Dinh Nhu Thao and Tran Thien Lan, Efficient 3D Poisson 

Solvers based on post‐BICGSTAB Algorithms: BICGSTAB 

(L), enhanced BICGSTAB (L) 

Người trình bày: Tran Thien Lan 

[P-76] Phan Duc Anh, Chu Thuy Anh, Ngo Van Thanh, and Nguyen Ai Viet 

, The Casimir Interaction between Au and Si in Arbitrary 

Configurations 

Người trình bày: Phan Duc Anh 

[P-77] Nguyen Thi Thao, Le Thi Phuong, and Pham Khac Hung, Study of 

Size Effect and Thermal Characteristics of Nanoparticles 

using Computer Simulation 

Người trình bày: Nguyen Thi Thao 

[P-78] P.K.Hung and T.V.Mung, Computer Simulation of Diffusion 

in Disordered Systems with Many Particles 

Người trình bày: Trinh Van Mung 

[P-79] T. L. Thuy. Nguyen, Noel Jakse, and Alain Pasturel , Structure 

and Dynamics of Gold‐Silicon Alloy by Molecular Dynamics 

Simulation 

20 

Tp. Hồ Chí Minh, 02-06/8/2010

Người trình bày: T. L. Thuy. Nguyen 

[P-80] Tran Nguyen Lan and Tran Hoang Hai, Properties of Magnetic 

Nano‐Particle Systems: A Monte Carlo Study 

Người trình bày: Tran Nguyen Lan 

[P-81] Tran Thi Thu Hanh and Vo Van Hoang, Structural Properties of 

Simulated Liquids and Amorphous GaAs, GaAs2, Ga2As 

Người trình bày: Tran Thi Thu Hanh 

[P-82] V. T. H. Yen, T.T.T Thuy, T.T Thao, N.V Thanh, and N.A Viet , The 

Simple Approximate Formula of the Curve of rate Constant 

“k” for Medium Temperature Range in the Photosynthetic 

Reaction of Bacterial. 

Người trình bày: Vu Thi Hai Yen 

[P-83] Ngo Thi Thu Dinh and Phung Van Dong, Neutrino Masses and 

Mixing in Standard Model with A4 ‐ Flavour Symmetry 

Người trình bày: Ngo Thi Thu Dinh 

16h20 – 17h00: 




Nguyen Nhu Dat and Le Thanh Hai, Electron Mobility in a 

Semiconductor Quantum Wire 

Người trình bày: Le Thanh Hai 

T.D. Doan, T. Meier, J. Gueder, U. Hoefer, S. W. Kock, Ultra‐fast 

Kinetics of Electron at the Metal Surface 

Người trình bày: Doan Tri Dung 

Thứ Tư, ngày 04 tháng 08 năm 2010 

Tham quan miệt vườn 

Thứ Năm, ngày 05 tháng 08 năm 2010 

BUỔI SÁNG: 

08h30 – 10h00: 

Chủ tọa: Dao Tien Khoa 



Phung Van Dong, Flavor Symmetry and Neutrino Mixing 

Người trình bày: Phung Van Dong – Báo cáo mời 

Nobuchika Okada, Tran Minh Hieu, Discriminating Supersymmetric 

Grand Unified Models in Gaugino Mediation 

Người trình bày: Tran Minh Hieu 

D. T. Huong, H. N. Long, and N. T. Thuy, Leptogenesis in 

Supersymmetric Economical 3‐3‐1 Model 

Người trình bày: Hoang Ngoc Long 

Tran Huu Phat, Le Viet Hoa, Nguyen Van Long, Nguyen Tuan Anh, and 

Nguyen Van Thuan, On a Phase Transitions of Nuclear Matter in 

the Nambu‐Jona‐Lasinio Model. 

Người trình bày: Le Viet Hoa 

10h00 – 10h30: 

10h30 – 11h30: 

Nghỉ giữa buổi 

Chủ tọa: Trinh Xuan Hoang 



Dao Khac An, Some Theoretical Issues of Wireless High Power 

Transmissions and a Mathematical Model of the Wireless 


21 

22 

Tp. Hồ Chí Minh, 02-06/8/2010 

Solar Power Transmission Problem from an Orbit in the 

Space to the Earth’s Surface. 

Người trình bày: Dao Khac An 

Pham Huu Kien, Pham Khac Hung, and Vu Van Hung, Computer 

Simulation of Microscopic Bubbles in Amorphous Alloy 

Co81.5B18.5 

Người trình bày: Pham Huu Kien 

Bui Phuong Thuy and Trinh Xuan Hoang, Evolution of Protein‐ 

Protein Interaction Networks in Duplication‐Divergence 

Model 

Người trình bày: Bui Phuong Thuy 


14h00 – 15h30: 



Người trình bày: Le Thi Thu Phuong 

15h45 – 16h30: Tổng kết Hội nghị, Họp Hội Vật lý lý thuyết, Lễ 

trao giải thưởng Nghiên cứu trẻ năm 2010 của 

Hội VLLT 

16h30 – 17h45: Gặp gỡ Sài Gòn – Sài Gòn 

xưa và nay 


Bao cao vien: PGS. TS. Dang Van Thang (Giam doc bao tang 

lich su van hoa) 

18h00: Liên hoan tổng kết 

Chủ tọa: Nguyen Hong Quang 

Dao Tien Khoa, Some Related Topics in Nuclear Physics and 

Astrophysics 

Người trình bày: Dao Tien Khoa – Báo cáo mời 

Van-Nam Do, Effects of Metallic Leads and Short‐Range 

Scattering Processes on the Electronic Transport Properties of 

Graphene in the Charge Neutrality Regime 

Người trình bày: Van-Nam Do 

Dinh Van Tuan and Nguyen Quoc Khanh, Ảnh Hưởng Của Nhiệt Độ 

Lên Phổ Plasmon Của Hệ Graphene Hai Lớp 

Người trình bày: Dinh Van Tuan 

Le Thi Thu Phuong, Nguyen Vu Nhan, Nguyen Thuy Linh and Nguyen 

Quang Bau, Parametric Resonance of Confined acoustic and 

Confined Optical Phonons in the Rectangular Quantum Wire 


23 

24 

Tp. Hồ Chí Minh, 02-06/8/2010

TÓM TẮT BÁO CÁO 


25 

26 


(Tp. Hồ Chí Minh, 02 – 06/8/2010) 

1. Vật lý năng lượng cao, hạt cơ bản, hạt nhân, thiên 

văn. 

1. Flavor Symmetry and Neutrino Mixing 

Phung Van Dong 

Institute of Physics, VAST, 10 Dao Tan, Ba Dinh, Ha Noi 

We give a review of flavor symmetries recently proposed as a 

leading candidate in solving the tribimaximal neutrino-mixing form. 

We show how these symmetries work by taking concrete examples: 

A 4 symmetry in the standard model and 331 model. 

Báo cáo Mời 

2. Some Related Topics in Nuclear Physics and Astrophysics 

Dao Tien Khoa 

Viện khoa học và kỹ thuật hạt nhân, 179 Hoàng Quốc Việt, Cầu Giấy, 

Hà Nội 

A brief overview on nuclear reactions occuring during the stellar 

evolution is given, focusing on the neutron star formation after a 

supernova explosion. We present further results obtained in the 

self-consistent Hartree-Fock (HF) mean-field approach for the bulk 

nuclear matter (NM) properties, using different sets of the effective 

nucleon-nucleon interaction. The HF predictions for the NM 

binding energy and pressure show that the considered mean-field 

interactions are divided into two families which are associated with 

two different behaviors (Asy-soft and Asy-stiff) of the NM 

symmetry energy at high densities, where only the Asy-stiff type 

interactions comply with the empirical NM pressure. These two 

families were shown to predict two different behaviors of the 

proton-to-neutron ratio in the beta-equilibrium which, in turn, 

imply two drastically different mechanisms for the neutron star 

cooling. The detailed DWBA analysis of the charge-exchange (p,n) 

reaction leading to the isobar analog excitation seems to provide 

some answer to this open question. 

Tp. Hồ Chí Minh, 02-06/8/2010 


3. Neutrinos, Scalars and Dark Energy 

Bruce McKellar 

Chủ tịch ủy ban Châu Á Liên minh quốc tế các Hội khoa học 

About 70% of the energy In the Universe is of a form which has 

negative pressure. The nature of this "dark energy" is unknown, and 

is the subject of much speculation. I will discuss a model in which 

neutral fermions, perhaps neutrinos, perhaps super-particles, 

perhaps other particles, interacting weakly with a light scalar 

particle, can provide the negative pressure and thus be a candidate 

for dark energy. 


4. Discriminating Supersymmetric Grand Unified Models in Gaugino 

Mediation 

Nobuchika Okada (1), Tran Minh Hieu (2, 3) 

(1) Department of Physics and Astronomy, University of Alabama, 

Tuscaloosa, AL 35487, USA; 

(2) Institute of Engineering Physics, Hanoi University of Science and 

Technology, 1 Dai Co Viet Road, Hanoi, Vietnam; 

(3) Faculty of Physics, College of Science, Vietnam National 

University, 334 Nguyen Trai Road, Hanoi, Vietnam 

It is well-known that SUSY must be broken in a certain way. In 

order to explain the SUSY breaking mechanism, one introduced the 

so-called gaugino mediated SUSY breaking (gaugino mediation). 

However, when the compactification scale is smaller than the GUT 

scale, the LSP is stau in almost all parameter space. To get the 

neutralino LSP, the compactification scale should be higher than the 

GUT scale. We produce mass spectra of gaugino mediation in GUT 

models consistent with the currently measured value of dark matter 

relic abundance and Higgs mass bound. Assuming the same LSP 

mass for both SU(5) and SO(10) GUT models, we find that sizable 

mass difference appears in left-handed slepton sector, providing a 

hint to experimentally test which GUT model would be realized in 

nature. 

Báo cáo Miệng 


27 

5. On a Phase Transitions of Nuclear Matter in the Nambu-Jona- 

Lasinio Model. 

Tran Huu Phat (1), Le Viet Hoa (2), Nguyen Van Long (3), 

Nguyen Tuan Anh (4), and Nguyen Van Thuan (5). 

(1) Vietnam Atomic Energy Commission, 59 Ly Thuong Kiet, Hanoi, 

Vietnam. 

(2) Hanoi University of Education, 136 Xuan Thuy, Cau Giay, Hanoi, 

Vietnam. 

(3) Gialai Teacher College, 126 Le Thanh Ton, Pleiku, Gialai, 

Vietnam. 


Vietnam. 


Vietnam. 

We investigate the stability of nuclear matter in the Nambu-Jona- 

Lasinio (NJL) model using the Cornwall-Jackiw-Tomboulis (CJT) 

effective potential which contributes higher loops. In mean field 

approximation, it was found that the wanted saturation properties 

are destroyed in the NJL model which is regarded as an extension of 

the Walecka mean field model to include negative energy fermion 

states. The minimum of the thermodynamic potential which 

corresponds to stable nuclear matter in the Walecka.We consider 

the saturation of the thermodynamic potential formulated by the 

CJT potential. Our results show that there exist saturation solutions 

corresponding to the constrain of the couplings. 

28 


6. Cosmic Formation and Decaying Dark Matter 

N. Q. Lan (1) and L. C. Tuong (1) 

Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, 

Hanoi, Vietnam 

The cosmological model with bulk viscosity from late-time darkmatter 

decay can lead to an improved t to the supernova magnituderedshift 

relation, and argue that it is likely satisfy other constraints as 

well. When the effects of higher-order terms in the transport 

equation are included in the form for the bulk viscosity coefficient, 

it possibly better fits to the cosmological data. 

Tp. Hồ Chí Minh, 02-06/8/2010


7. Leptogenesis in Supersymmetric Economical 3-3-1 Model 

D. T. Huong (1), H. N. Long (2), and N. T. Thuy (3) 


We study a leptogenesis via decays of heavy Majorana neutrinos 

produced non-thermally in inflaton decays in the supersymmetric 

economical SU(3)_C X SU(3)_L X U(1)_X model with 

inflationary scenario. For this purpose, neutrino masses in the 

framework of the mentioned model are considered. At the treelevel, 

the model contains three Dirac neutrinos: one massless, two 

large with degenerate masses in the range of the electron mass. At 

the one-loop level, the left-handed and right-handed neutrinos 

obtain Majorana masses M_L,R in orders of 10^-2-10^-3 eV and 

degenerate in M_R=-M_L, while the Dirac masses get a 

contribution in the range of the tree-level. With the contribution 

from the inflaton, the masses get a correct hierarchy. The leptonnumber 

violating interaction of the inflaton with right-handed 

neutrinos exists at the one-loop level, and this is a reason for nonthermal 

leptogenesis. To satisfy both the gravitino abundance and 

the cosmological constraint on neutrino mass m_\nu 3 \simeq 0.05 

eV, by taking the reheating temperature as low as T_R= 10^6 GeV, 

we get a limit on the ratio of masses of the light heavies neutrino to 

those of the inflaton to be: 0.49 \leq M_R1 /M_\phi \leq 0.99. 


minimization with respect to all other deformation parameters in 

every point of a grid. Macroscopic-microscopic method was applied 

with mean-field in the form of Woods-Saxon potential. Nuclei 

around magic number N=184, available in fusion channel 

experiments at Dubna and GSI were studied. Interesting features in 

some nuclei, like effect of a32 deformation on saddle points, three 

axial shapes in ground state configuration, possible fission from 

oblate shape are predicted. 


8. Effects of Exotic Shapes on Potential Energy Surface of 

Superheavy Nuclei 

Piotr Rozmej 

Faculty of Physics and Astronomy, University of Zielona Gora, 

Poland 

In the paper, potential energy surface for many superheavy nuclei 

was studied in extremely rich space of shapes. Thirteen deformation 

degrees of freedom was used, including a20, a22, beta3, a32, a40, 

a42, a44, a50, a52, a54, beta6, beta7 and beta8. The potential energy 

surface was obtained as function of a20 and a22 deformation with 


29 

30 

Tp. Hồ Chí Minh, 02-06/8/2010 

9. Solutions for Yang-Mills Field with Singular Source Terms and 

Higher Topological Indices 

Nguyen Vien Tho (1), To Ba Ha (2), and Nguyen Quoc Hoan 

(3) 

(1) Hanoi University of Technology, 1 Dai Co Viet, Hai Ba Trung, Ha 

Noi (2) Le Quy Don University; (3) Specialized School of Ha Giang 

The screening of color charges in systems of non-Abelian Yang- 

Mills fields coupled to source terms is a phenomenon of great 

interest, since it may provide an argument for color confinement in 

QCD. Some classes of solutions to the Yang-Mills equations with 

source terms were discovered and investigated. In the present work, 

we find solutions for Yang-Mills field with two point sources in the 

sector of higher topological indices. Mathematically, this is a 

nonlinear problem of elliptic partial differential equations with ï¤function 

singular source terms and axial symmetry. The obtained 

numerical solution by relaxation methods for field functions is 

presented. We show that the screening of the source charges is 

actually present and caused by the vector component of the gauge 

potential. The total energies of the system are calculted for a range 

of charge magnitudes, and the plot of energy versus charge 

magnitude is presented. 


Hanoi University of Science, 334 Nguyen Trai, Thanh Xuan, Ha Noi 

In this report the effective - section of Scattering of polarized 

neutrons in ferromagnetic crystal in presence of radiation and 

absorption of phonon is obtained and discussed. 

Báo cáo Treo 

12. Neutrino Masses and Mixing in Standard Model with A4 - 

Flavour Symmetry 

Ngo Thi Thu Dinh (1) and Phung Van Dong (2) 

(1) Hanoi University of Science, 334 Nguyen Trai, Thanh Xuan, Ha 

Noi, 

(2) Institute of Physics, Vietnam Academy of Science and Technology, 

10 Dao Tan, Ba Dinh, Ha Noi 

Although the Standard Model is very successful, it also leaves many 

questions unanswered, one of which is massless of neutrinos. In this 

talk we introduce A4 - flavour symmetry into the Standard Model 

with appropriate extension of scalar representations. As a result, the 

neutrinos gain naturely small masses in agreement with experiment. 

The neutrino mixing matrix in terms of tribimaximal form is 

obtained. 


10. Inelastic Scattering of Polarized Neutrons in Paramagnetic 

Crystal in Presence of Radiation and Absorption of Phonon 

Vu Xuan Bach and Nguyen Dinh Dung 


In this report the effective cross-section of inelastic scattering of 

polarized neutrons in paramagnetic crystal inpresence of radiation 

and absorption of phonon is obtained and discussed. 


11. Scattering of Polarized Neutrons in Ferromagnetic Crystal in 

Presence of Radiation and Absorption of Phonon 

Vu Xuan Chung and Nguyen Dinh Dung 


31 

32 

Tp. Hồ Chí Minh, 02-06/8/2010

13. BRST - Invariant String Functional Interaction Lagrangians 

Dao Vong Duc (1) and Huynh Thi Trang Dai (2) 

(1) Institute of Physics, VAST, 10 Dao Tan, Ba Dinh, Ha Noi 

(2) Cantho University, 3/2 Ninh Kieu, Can Tho 

A simple model is presented for the construction of string field 

functional interaction Lagrangians. The crucial argument is to 

introduce some auxiliary funetional and to use appropriate BRSTinvariant 

combinations. The model could also be used to give the 

change in the mass spectrum of the field components, and as a result 

to solve the tachyon problem. 


14. The Applications of Q-Deformed Statistics in Phenomenon of 

Bose-Einstein Condensation for the Q-Deformed Gases 

Tran Thai Hoa (1), Luu Thi Kim Thanh(1), Mai Thi Linh 

Chi (1), Luong Khanh Toan (1). 

(1) Hanoi pedagogical university no.2 

We consider the statistics of q-oscillators and their applications into 

the phenomenon of Bose-Einstein condensation. The expression for 

Bose-Einstein condensations temperature is derived. 


15. Renormalization Group and 3-3-1 Model with the Discrete Flavor 

Symmetries 

L. T. Hue (1), H. T. Hung (2), H. N. Long (1), V. V. Vien (3), 

and V. T. H. Yen (1) 

(2) Hanoi University of Education II, Xuan Hoa, Me Linh, Vinh Phuc 


(3) Tay Nguyen University 

We consider the ways of obtaining consistency between the idea of 

discrete flavour symmetry and an apparent low value of ∝ S ~ 0.112 

indicated by several low energy experiments. By making a 

renormalization group analysis we explore the possibility of having 

the 3-3-1 models with A 4 and S 4 flavour symmetries as the only 

intermediate gauge group between the standard model and the scale 

of unification of the three coupling constants. We shall assume that 

there is no necessarily a group of grand unification at the scale of 

convergence of the couplings. 


16. The Higgs Effective Potential in the Electroweak-Scale Right- 

Handed Neutrinos Model 

Pham Quang Hung and Nguyen Nhu Le 

Physics department, University of Virginia, USA Physics department, 

Hue University's College of Education, Viet Nam 

In quantum field theory, radiative corrections to the Higgs potential 

can have Higgs effective potential. In the present paper we 

calculated analytically the Higgs effective potential in the 

electroweak-scale right-handed neutrinos model. In the calculated 

progress, the possible contributions to Higgs effective potential 

were investigated. The results leads to serve bounds on masses of 

Higgs and fermions in this model. 


17. Generally Covariant Duality and Gravitational Scalar Field 

Dao Vong Duc (1) and Nguyen Thi Ha Loan (2) 


33 

34 

Tp. Hồ Chí Minh, 02-06/8/2010 

(1) Institute of Physics, VAST, 10 Dao Tan, Ba Dinh, Ha Noi, (2) 

Hanoi Pedagogical University No.2, Xuan Hoa, Me Linh, Vinh Phuc 

In this work the concept of Generally covariant duality is considered 

in the framework of General Relativity Theory based on the tetrad 

formalism. The generalized covariant Levi- Civita tensor is 

introduced and the equation for the attached gravitational scalar 

fields are derived by the use of the tetrad postulate. It is shown that 

the masses of these fields are closed related to Einstein's Universal 

Constant, and as a consequence the existence of scalar particle with 

negative squared mass (like tachyon in String Theory) is also 

predicted. 


18. Photon-Radion Conversion Cross-Sections in External 

Electromagnetic Field 

P. V. Dong (1), H. N. Long (1), D. V. Soa (2), and 

N. H. Thao (3) 


(2) Department of Physics, Hanoi University of Education, 136 Xuan 

Thuy, Cau Giay, Ha Noi 

(3) Department of Physics, Hanoi University of Education II, Xuan 

Hoa, Me Linh, Vinh Phuc 

A review of Randall-Sundrum model with stressing on radion 

phenomenology is presented. The creation of the radion in the 

external electromagnetic field is considered. The differential cross 

sections for the conversions in the presence of the electric field of 

the flat condenser as well as in the magnetic field of the solenoid are 

calculated in details. The results show that the cross-sections are 

biggest for the Higgs-radion mixing parameter \xi = + 1/ 6. Based 

on our results a laboratory experiment for production and detection 

of the light radions may be described. 


19. The Energy of the Asymmetric Nuclear Matter in the four- 

Nucleon Model 

Tran Huu Phat (1), Nguyen Van Long (2), Nguyen Tuan 

Anh (3), Le Viet Hoa (4), and Nguyen Chinh Cuong (5) 


35 

36 


Vietnam. 

(2) Gialai Teacher College, 126 Le Thanh Ton, Pleiku, Gialai, 

Vietnam. 


Vietnam. 


Vietnam. 


Vietnam. 

The Energy of the asymmetric nuclear matter in the four-nucleon 

model is determined within the Cornwall-Jackiw-Tomboulis (CJT) 

effective action approach. In the double-bubble approximation the 

theory provides the nuclear symmetry energy (NSE) consistent with 

the recent analysis of experimental data and, at the same time, leads 

to a softer incompressibility, K0 = 240 MeV, without invoking any 

additional term similar to the Boguta-Bodmer potential 


Tp. Hồ Chí Minh, 02-06/8/2010

20. Quasars Can just Be White Holes in the Vector Model for 

Gravitational Field 

Vo Van On 

Thu Dau Mot University, 230 Đại lộ Bình Dương, Tỉnh Bình Dương 

In this paper we prove that quasars can just be while holes in the 

vector model for gravitational field and thus the controversial 

properties of quasars as high redshift and extraordinarily high 

luminosity can be clear. 


21. Calculation of Thermal and Epithermal Neutron Self-shielding 

Factors Using the Monte Carlo Code –MCNP 

Phu Chi Hoa (1), Vuong Huu Tan (2), Pham Ngoc Son (3), 

Huynh Xuan Lam (1) 

(1) The University of Dalat, 01 Phu Dong Thien Vuong, Dalat, 

(2) Vietnam Atomic Energy Institute, 59 Ly Thuong Kiet, Hanoi, 

(3) Nuclear Research Institute, 01 Nguyen Tu Luc, Dalat 

Neutron activation measurement is often performed in a reactor 

neutron spectrum. When the size of the irradiation sample is not 

small enough and resonance pecks present in the cross section of the 

sample nuclide, the thermal and resonance self-shielding effects of 

neutron flux in the sample must be considered for correction. In this 

work, the Monte Carlo code MCNP has been applied for calculation 

of the self-shielding factors for several standard samples and 

neutron monitors that are often used in neutron activation 

measurements. The results of calculation are tabulated with different 

sample thickness in comparison with experimental and calculated 

values from the literature. 


22. The Specific Heat CV of the System of the Q- Deformed 

Harmonic Oscillarors 

Luu Thi Kim Thanh (1), Tran Thai Hoa (1), Nguyen Dinh 

Tuan (1), Duong Dai Phuong (2) 

(1) Hanoi pedagogical university no.2, Xuan Hoa, Me Linh, Vinh 

Phuc 

(2) Miliary College of Tank- Armour Officer 

We investigate some physical content of the q- deformed harmonic 

oscillator, with q is real and q is a phase factor. The expression for 

the statistical sum and the average energy of one q- deformed 

harmonic oscillator are derived, we have caculated the specific heat 

Cv of the once mol of the q- deformed harmonic oscillator. 


23. Inelastic Scattering of Polarized Neutrons in Magnetic Helicoidal 

Structure Crystal in Presence of Radiation and Absorption of 

Phonon 

Le Phuong Thao and Nguyen Dinh Dung 


In this report the effective cross- section of inelastic scattering of 

polarized neutrons in magnetic helicoidal structure crystal in 

presence of radiation and absorption of phonon is obtained and 

discussed 


24. Impact of CP Phases on the Gluino Production Process in 

Electron- Positron Annihilation 

Trieu Quynh Trang (1), Nguyen Thi Thu Huong (2), and Ha 

Huy Bang (3) 

(1) Nam Dinh teacher's tranning college (2,3) Ha Noi University of 

Science, 334 Nguyen Trai, Thanh Xuan, Ha Noi 

The gluino pair production process in electron- positron annihilation 

into gluino pair has been considered within the Minimal 

Supersymetric Standard Model (MSSM) with CP phases. In this 

work, we have annalyzed effecs if finite CP phases on gluino pairproduction 

in e +e- collisions at future high energy linear collider. 

And we find that, the cross- section can be observed over most 

ranges of MSSM parameter space. 



37 

38 

Tp. Hồ Chí Minh, 02-06/8/2010 

25. The Glauber-type of Representation for the Scattering Amplitude 

of the Dirac Particles on Smooth Potential . 

Nguyen Suan Han (1) and Le Thi Hai Yen (1) 

(1) Vietnam National University, Hanoi University of Sciences, 

Faculty of Physics, Department of Theoretical Physics 

By the functional integration method the deduction of the Glaubertype 

representation for scattering amplitude of the spin Â½ particles 

on the smooth potential is performed. This method generalizing the 

usual operation of taking the square of the Dirac equation is 

proposed for obtaining the functional integral representation of the 

amplitude. It has shown that the scattering amplititudes, which have 

obtained by moving to shell mass, of normal Green function and 

quadratic Green function are the same types, and taking into 

account of spin of particles leads to new term which is responsible 

for the spin flip in the scattering processes. 


II. Vật lý các môi trường đông đặc, hệ thấp chiều, cấu 

trúc nano 

26. Condensation Kinetics of Polaritons in Semiconductor 

Microcavities 

Cao Huy Thien, Doan Tri Dung, and Tran Thoai Duy Bao 

Viện Vật lý, Thành phố Hồ Chí Minh, Số 1 Mạc Đĩnh Chi, Thủ Đức, 

Tp. Hồ Chí Minh 

The excited polaritons relax by phonon and polariton – polariton 

scattering to the ground state. At sufficiently low temperatures and 

sufficiently strong pumping a condensation in the ground state 

occurs 

which is directly observable in terms of an onset of laser action of 

the lowest photon mode of the cavity. Our recent theoretical studies 

for a finite-size Bose Einstein condensation of polaritons are 

reviewed. 


27. Frequency-Dependent Linear and non-linear Response 

Properties of Semiconductor Quantum wires 

Nguyen Nhu Dat 

Institute of Physics, Vietnam Academy of Science and Technology, 10 

Dao Tan, Ba Dinh, Ha Noi 

Linear and non-linear optical response of semiconductor quantum 

wires is studied. The influence of the confinement potential on the 

optical properties of the wire is computed. 



39 

40 

Tp. Hồ Chí Minh, 02-06/8/2010

28. Effects of Metallic Leads and Short-Range Scattering Processes 

on the Electronic Transport Properties of Graphene in the Charge 

Neutrality Regime 

Van-Nam Do 

Hanoi Advanced School of Science and Technology (HAST), Hanoi 

University of Science and Technology (HUST), No 01 Dai Co Viet 

Road, Hanoi, Vietnam 

Since the discovery of graphene in 2004 the electronic transport 

properties of this two-dimensional carbon material in the charge 

neutrality regime is still an issue attracting a great consideration. It is 

due to the fact that according to the cone shape of the electronic 

structure, the density of state must be vanished at the Dirac point but 

both experimental and theoretical studies show a finite minimum 

value of the charge conductivity at this point. The non-zero 

minimum conductivity has been interpreted as due to the transport 

of charges via the evanescent modes and/or due to the long-range 

scattering caused by charged impurities absorbing on the graphene 

surface. In this presentation, we however point out that both the 

metallic leads used in the transport measurement and the shortrange 

scattering processes play an essential role in governing the 

quantitative picture of the conductivity comparable to available 

experimental data. 


29. Ultra-fast Kinetics of Electron at the Metal Surface 

T.D. Doan (1), T. Meier (2), J. Gueder (2), U. Hoefer (2), S. 

W. Kock (2) 

(1) Ho Chi Minh City Institute of Physics, 1 Mac Dinh Chi, Ho Chi 

Minh City, Vietnam. 

(2) Fachbereich Physik und Zentrum fuer Materialwissenschaften, 

Philipps-Universitaet, D-35032 Marburg, Germany. 

An electron in the valence band under a two-frequencies field 

pumping will jump into the vacuum and be trapped in the imagepotential 

states causing by its image charge locating nearly inside 

the metal surface. Their band structure shows a similar to a two 

band system to be likely semiconductors. Their kinetics, thus, will 


41 

42 

be studied by using the Bloch equations to be similar to the 

semiconductors. A calculated electric current due to asymmetry 

population is shown a good agreement with corresponding one 

measured recently given by Guedder et al. 


30. Nonlinear Absorption Line-Widths in Cylindrical Quantum wires 

Tran Cong Phong (1), Huynh Vinh Phuc (2), Le Thi Thu 

Phuong (1), Le Dinh (1) 

(1) Department of Physics, Hue University’s College of Education, 32 

Le Loi, Hue; 

(2) Department of Physics, Dong Thap University, 783 Pham Huu 

Lau, Cao Lanh, Dong Thap, Viet Nam 

Applying the theory of nonlinear optical conductivity for an 

electron-phonon system that has appeared recently, we propose a 

new way to obtain the line-width for nonlinear optical conductivity 

in a system of electron-optical phonon in cylindrical quantum wires 

(CQW). General analytic expressions for the nonlinear absorption 

power (NLAP) are obtained in the presence of an intensity field and 

the two photon process is included into the result. In the first time, 

the graphic dependence of NAP on the photon energy and the shape 

of CQW is achieved computationally for specific CQWs. From 

graphs of the NLAP we obtain line-widths as profile of curves. The 

dependence of the line-width on the temperature and the parameter 

of a CQW is reasonable in comparison with some theoretical and 

experimental results. 


31. Parametric Resonance of Confined Acoustic and Confined 

Optical Phonons in the Rectangular Quantum Wire 

Le Thi Thu Phuong, Nguyen Vu Nhan, Nguyen Thuy Linh, 

and Nguyen Quang Bau 

Hanoi University of Science , 334- Nguyen Trai, Hanoi, Viet Nam 

The parametric resonance of confined acoustic and confined optical 

phonons in the rectangular quantum wire in the presence of an 

external electromagnetic field is theoretically predicted by using a 

Tp. Hồ Chí Minh, 02-06/8/2010 

set of quantum transport equations for phonons. The threshold 

amplitude of the field for parametric amplification of the confined 

acoustic phonons is obtained. The dependence of the threshold 

amplitude of the field on the temperature T and on the wave number 

q is numerically evaluated, plotted and discussed for a specific 

quantum wire GaAs/GaAsAl. All the results are compared with 

those for the unconfined phonons to show the difference 


32. Charged Excitons in Bilayer Quantum Dots 

Nguyen Hong Quang, Nguyen Duong Bo, Nguyen Nhu Dat, 

Trinh Xuan Hoang, and Duong Xuan Long 



The excitons and charged excitons in bilayer two-dimensional 

parabolic quantum dots with spatially separate electrons and a hole 

are investigated theoretically by unrestricted Hartree-Fock method. 

The effect of external magnetic fields, confinement, and additional 

charging electrons on the energies of excitons are studied 

numerically in details in the dependence of the separation length d 

between two layers. The absorption spectra of charged excitons are 

simulated and compared in two cases with d=0 and d0 showing 

the interesting role of the separation length between two layers in 

the optical properties of the system. 


33. Ảnh hưởng của nhiệt độ lên phổ Plasmon của hệ Graphene hai 

lớp 

Dinh Van Tuan and Nguyen Quoc Khanh 

Bộ Môn Vật Lý Lý Thuyết, Khoa Vât Lý – Vật Lý Kỹ Thuật, Trường 

Đại Học Khoa Học Tự Nhiên TP. Hồ Chí Minh, 227-Nguyễn Văn Cừ, 

Quận 5, Thành Phố Hồ Chí Minh , Việt Nam 

Trong báo cáo này, chúng tôi trình bày hàm điện môi động ở nhiệt 

độ bất kì của hệ graphene hai lớp kích thích (doped double-layer 

graphene (DLG)), một hệ được tạo thành từ hai đơn lớp graphene 

với mật độ hạt tải tương ứng n1, n2 và khoảng cách hai lớp là d. Kết 


43 

44 

quả này được dùng để tìm phổ phân cực plasmon của hệ ở nhiệt độ 

bất kì. Chúng tôi đã khảo sát các trường hợp: hệ đối xứng (n1= n2), 

hệ bất đối xứng và đặc biệt là n2=0 và thu được nhiều kết quả thú 

vị. Đồng thời chúng tôi củng khảo sát sự thay đổi của phổ plasmon 

của hệ theo nhiệt độ, và theo khoảng cách d giữa hai lớp. 


34. Electron Scattering from Polarization Charges Bound on a 

Rough Interface of Heterostructures 

Nguyen Thanh Tien (1), Nguyen Huyen Tung (2), and Doan 

Nhat Quang(3) 

(1) College of Science, Can Tho University, 3-2 Road, Can Tho City, 

Vietnam 

(2) Institute of Engineering Physics, Hanoi Universityof Technology, 

1 Dai Co Viet Road, Hanoi, Vietnam 

(3) Center for Theoretical Physics, Vietnamese Academy of Science 

and Technology, 10 Dao Tan Street, Hanoi, Vietnam 

We present the theory of an ad hoc scattering mechanism for 

electrons in the conduction channel of actual heterostructure (HSs) 

made of polar materials, e.g., nitrides and oxides. We show that the 

carriers must be extra scattered from spontaneous and piezoelectric 

polarization charges bound on a rough interface of the HS. In 

combination with the normal surface roughness (SR) scattering 

from roughness-induced fluctuations in the potential barrier 

position, this gives rise to an effective surface roughness scattering 

referred to as the polarization surface roughness (PSR) scattering. 

This process is determined by the roughness profile and 

polarizability of the interface. 


35. Effects of Magnetic Field on the Electronic Structure and 

Transport Properties of Graphene and Graphene Nanoribbons 

Le Hoang Anh (1), Ho Sy Ta (2), and Do Van Nam (3) 

(1) Center for Training of Excellent Students, Hanoi University of 

Science and Technology, No 01 Dai Co Viet Road, Hanoi, Vietnam; 

(2) Department of Physics, National University of Civil Engineering, 

No 55 Giai Phong Road, Hanoi, Vietnam; 

Tp. Hồ Chí Minh, 02-06/8/2010

(3) Hanoi Advanced School of Science and Technology, Hanoi 

University of Science and Technology, Building F No 40 Ta Quang 

Buu Street, Hanoi, Vietnam 

We present a study of the effects of a magnetic field on the 

electronic structure and transport properties of graphene and 

graphene nanoribbons with two typical edge shapes, namely the 

zigzag and the armchair. In our calculations an empirical tightbinding 

description in the nearest neighbor coupling approximation 

is used to describe the graphene nanoribbons. The magnetic field is 

included by using the conventional Peierls substitution which leads 

to a phase factor for the hoping parameter between two lattice 

nodes. The dependence of the energy on the wave vector along the 

ribbons length or the dissipation law is then calculated just by 

diagonalizing a Hamiltonian. However, the transport properties of these 

systems are investigated by using the non-equilibrium Green’s function 

(NEGF) method. Obtained results show that the magnetic field almost 

does not cause any significant effects for narrow graphene nanoribbons, 

but for the larger one (>30 nm) it can significantly quantize the electronic 

states of graphene and graphene nanoribbons into discrete modes known 

as the Landau levels. This quantization is clearly seen in the pictures of the 

density of states and/or the transmission coefficient. 


36. Influence of Phonon Confinement on Absorption Power and 

Line-Width in a Free-Standing Gaas Quantum Wire 

Le Dinh (1), Le Quoc Anh (1) and Tran Cong Phong (1,2) 

(1) Departmant of Physcis, Hue University's College of Education, 32 

Le Loi, Hue, Viet nam. 

(2) National Education Union of Vietnam, 02 Trinh Hoai Duc, Dong 

Da, Ha noi, Viet Nam 

Based on state-independent projection technique (SIPT) we 

calculate analytical expressions of conductivity tensor and 

absorption power in cylindrical quantum wires (CQW) due to 

electron-longitudinal optical (LO) phonon interaction. Both 

electrons and phonons are confined in the CQW and the numerical 

results are presented for free-standing GaAs quantum wires. From 

graphs of the absorption power we obtain line-widths as profile of 

curves. The dependence of the absorption power and the line-widths 


45 

46 

on the temperature, the radius of the CQW are obtained. 

Comparisons between the value of the absorption powers and the 

line-widths in the case of confined phonons and bulk phonons are 

discussed. 


Tp. Hồ Chí Minh, 02-06/8/2010 

37. Simple Model for the Indirect Exciton in a Strong Magnetic Field 

V.T Hoa, T.T.T. Van, T.T. Thao, P.D. Anh, N.V. Thanh, 

and N.A. Viet 



A simple theoretical model for the indirect exciton (type 2) without 

and in strong magnetic field is developed, in which the electrons 

and hole are separated in two spaces. The stabilize role of a strong 

magnetic field is investigated. For comparison the case of exciton 

type 2 in InP/GaAs quantum dot was studied and found a good 

agreement between theoretical and experimental data. 


38. Conductance and Shot Noise in Gate-Controlled Zigzag 

Graphene Nanoribbons 

Tran Nguyen Dung 



Using the recursive Green’s function method, we study the ballistic 

transport in gated controlled zigzag graphene nanoribbons. The 

conductance, the current-voltage characteristics, and the shot noise 

have been calculated for ribbons with different widths under a 

tuning gate. We observed a step-like structure and an oscillation 

behavior of the conductance as a function of the incident energy. 

The shot noise value obtained demonstrates the ballistic nature of 

the conduction process. 


39. Electron Mobility in a Semiconductor Quantum Wire 

Nguyen Nhu Dat (1) and Le Thanh Hai (2) 

(1) Institute of Physics, Vietnam Academy of Science and Technology, 

10 Dao Tan, Ba Dinh, Ha Noi; (2) Hanoi University of Civil 

Engineering 

A macroscopic continuum model is used to study the longitudinal 

optical phonons in a circular semiconductor quantum wire which is 

embeded in a finite thickness barrier. The Hamiltonian describing 

the electron-LO-phonon interaction is obtained and used to calculate 

the phonon-limited electron mobility by the memory function 

approach. Numerical calculations are performed for a typical 

GaAs/GaAlAs quantum wire to demonstrate the effect of the barrier 

thickness on the electron mobility. 

Báo cáo Mieng 

40. Effect from Doping of Quantum - Wells on Enhancement of The 

Mobility Limited by One-Interface Roughness Scattering 

Tran Thi Hai (1), Nguyen Trung Hong (2), Nguyen Huyen 

Tung( 3) 

(1) Department of Physic, Hanoi National University, 334 Nguyen 

Trai, Thanh Xuan, Hanoi, Vietnam 

(2) Center for Talent Training, Hanoi University of Technology, 1 

Dai Co Viet Road, Hanoi, Vietnam 

(3) Institute of Engineering Physics, Hanoi University of Technology, 

1 Dai Co Viet Road, Hanoi, Vietnam 

We present a theoretical study of the effect from doping of quantum 

wells (QW) on enhancement of the mobility limited by oneinterface 

roughness scattering. We find that for roughness-related 

scattering from two interfaces or from the doping-side interface, the 

mobility in a two-side (2S)-doped QW are larger than that in oneside 

(1S)-doped, but smaller than that in undoped counterparts. For 

scattering 

from 

substrate-side interface, the 2S-doped QW mobility is smaller than 

the 1S-doped QW one. We examine the dependence of the 2Sdoped 

QW mobility on the well width, carrier density, and 


47 

48 

Tp. Hồ Chí Minh, 02-06/8/2010

correlation length. The roughness-limited mobility of 2D-doped 

QWs exhibits a well-width evolution deviated from the classic law 

for the undoped QW. Compared to the 1S-doping case, the 2Sdoped 

QW mobility is enhanced by a rather large factor dependent 

on the sample parameters. Our theory is able to well reproduce the 

recent experimental data on transport in 2S-doped square QWs, e.g., 

the mobility dependence on the well width and the enhancement 

factor, which have not been explained so far. 


41. Parametric Transformation and Parametric Resonance of 

Confined Acoustic Phonons and Confined Optical Phonons in 

Quantum Wells 

Do Manh Hung, Nguyen Quang Bau, and Nguyen Dinh 

Nam 


The parametric transformation and parametric resonance of 

confined acoustic phonons and confined optical phonons in 

quantum wells in the presence of an external electromagnetic field 

are theoretically studied by using a set of quantum kinetic equations 

for phonons. The analytic expression of the parametric 

transformation coefficient K1 and the threshold amplitude of the 

field in quantum wells are obtained. Unlike the case of unconfined 

phonons, the formula of K1 and contains a quantum number m 

characterizing confined phonons. Their dependence on the 

temperature T of the system and the frequency of the 

electromagnetic field is studied. Numerical computations have been 

performed for GaAs/AlAsAl quantum wells. The result have been 

compared with the case of unconfined phonons which show that 

confined phonons cause some unusual effects. 


(1) Department of Natural Sciences, Sai Gon University, 273 An 

Duong Vuong, District 5, Ho Chi Minh, Viet Nam. 

(2) Department of Physics, Dong Thap University, 783 Pham Huu 

Lau, Cao Lanh, Dong Thap, Viet Nam. 

(3) Department of Physics, Hue University’s College of Education, 32 

Le Loi, Hue,Viet Nam 

The electrophonon resonances (EPR) and optical detected 

electrophonon resonance (ODEPR) effects in compositional 

semiconductor superlattices (CSSL) are investigated by using the 

quantum kinetic equation for electrons in the case of electron – 

longitudinal optical (LO) phonon scattering. General analytic 

expressions for the absorption power are obtained. We also obtain 

the photon energy dependence of optical detected electrophonon 

resonance condition for a specific GaAs-Ga 1-x Al x As superlattice (x 

= 0.15). In particular, anomalous behaviors of the ODEPR effect 

such as the splitting of ODEPR peaks for incident photon energy are 

discussed. This raises a possibility of detecting experimentally 

electric subbands in CSSLs by utilizing EPR effects 


42. Electrophonon Resonance in Compositional Semiconductor 

Superlattices 

Vo Thanh Lam (1), Luong Van Tung (2), and Tran Cong 

Phong (3) 


49 

50 

Tp. Hồ Chí Minh, 02-06/8/2010 

43. Ginzburg – Landau Functional for the Coexistence of many 

Phases in many – Body Systems 

Nguyen Tri Lan 



A generalized version of Hatree – Fock – Bogoliubov 

approximation, which plays an essential role in the investigation of 

coexistence of many phases in many – body systems, is obtained 

within the functional multi – component Hubbard – Stratonovich 

transformation. The BCS gap equation and magnetization equation 

containing the contributions of different order parameters are 

obtained straightforward from Hatree – Fock – Bogoliubov 

approximation resulting in a possible for the coexistence of many 

phases. In the vicinity of the phase transition, the perturbative 

expansion of effective action around the mean – field solution in the 

auxiliary fields reveals a lot information about the phase transition 

of the system that is described by Ginzburg – Landau functional of 

order parameters. The stationary conditions of the grand 

thermodynamic potential with respect to decoupling parameters of 

Hubbard – Stratonovich transformation is also studied to ensure the 

consistence of physical quantities of interests or in the other words, 

the cancellation of between different diagram families generated by 

Hubbard – Stratonovich transformation. 


function, we are able to derive an analytic expression for the selfconsistent 

Hartree potential. Then, we obtained an expresion 

describing the enhancement of the 2DEG screening and unscreened 

potentials for different scattering sources. We studied the electron 

mobility due to different scattering sources in an unintentionally 

doped GaN/AlGaN surface quantum well. 


45. Supersolids of Hard Core - Bosons on a Triangular Lattice. 

Pham Thi Thanh Nga (1) and Nguyen Toan Thang (2) 

(1) Water Resources University (2) Institute of Physics, Vietnam 

Academy of Science and Technology, 10 Dao Tan, Ba Dinh, Ha Noi 

We study the boson model on a triangular lattice interacting only via 

on-site hardcore repulsion by mapping to a system of spins (S=1/2). 

We investigate the supersolid phase of the systems which is a state 

matter displaying both diagonal long- range (solid) order as well as 

off-diagonal long-range (superfluidity) by utilizing a semionic 

representation for the spin-XXZ model. We obtain the phase 

diagrams exhibiting a coexistence of superfluid and solid orders as 

the parameters are varied. 


44. Electron Mobility in an Unintentionally Doped GaN/AlGaN 

Surface Quantum Well 

Nguyen Viet Minh 

Institute of Engineering Physics, Hanoi University of Science and 

Technology, 1 Dai Co Viet Road, Hanoi 

We present a theoretical study the two-dimensional electron gas 

2DEG at low tempera-ture in an un-intentionally doped 

GaN/AlGaN surface quantum well, taking adequate ac-count the 

possible scattering mechansms. Within model of surface quantum 

wells that 2DEG be described by the extended Fang-Howard wave 


51 

52 

Tp. Hồ Chí Minh, 02-06/8/2010

46. The Nonlinear Acoustoelectric Effect in a Cylindrical Quantum 

Wire with a Infinite Potential 

Nguyen Van Nghia (1), Tran Thi Thu Huong (2), Nguyen 

Quang Bau (2) 

(1) Department of physics, Water Resources University, 175 Tay Son, 

Dong Da, Ha Noi 

(2) Department of physics, Hanoi National University, 334 Nguyen 

Trai, Thanh Xuan, Ha Noi 

The nonlinear acoustoelectric effect in a cylindrical quantum wire 

with a infinite potential is investigated by using Boltzmann kinetic 

equation for an acoustic wave whose wavelength λ = 2π/q is smaller 

than the mean free path l of the electrons and hypersound in the 

region ql >> 1, (where q is the acoustic wave number). The analytic 

expression for the acoustoelectric current I is calculated in the case: 

relaxation time of momentum is constant approximation and 

degenerates electrons gas. The nonlinear dependence of the 

expression for the acoustoelectric current I on the acoustic wave 

numbers q and on the intensity of constant electric field E are 

obtained. Numerical computations are performed for AlGaAs/GaAs 

cylindrical quantum wire with a infinite potential. The results are 

compared with the normal bulk semiconductors and the 

superlattices to show the values of the acoustoelectric current I in 

the cylindrical quantum wire are different than they are in the 

normal bulk semiconductors and the superlattices. 



53 

47. The Dependence of the Parametric Transformation Coefficient of 

Confined Acoustic and Confined Optical Phonons in the Rectangular 

Quantum Wire 

Luong Van Tung (1), Ngo Thi Thanh Ha (2), Nguyen Thi 

Thanh Nhan (2), Le Thi Thu Phuong (2), Nguyen Quang 

Bau (2) 

(1) Department of Physics, Dong Thap University, 783-Pham Huu 

Lau, Dong Thap, Viet Nam (2) Hanoi University of Science, 334 

Nguyen Trai, Thanh Xuan, Ha Noi 

The parametric transformation of confined acoustic and confined 

optical phonons in a rectangular quantum wire is theoretically 

studied by using a set of quantum kinetic equations for phonons. 

The analytic expression of parametric transformation coefficient of 

confined acoustic and confined optical phonons in a rectangular 

quantum wire is obtained. The dependence of the parametric 

transformation coefficient on the temperature T is numerically 

evaluated, plotted and discussed for a specific quantum wire 

GaAs/GaAsAl. All the results are compared with those for the 

unconfined phonons to show the difference. 

54 


48. Rate of Phonon Excitation and Conditions for Phonon 

Generation in Cylindrical Quantum Wires 

Tran Cong Phong (1,2), Le Thi Thu Phuong (1), Tran Dinh 

Hien (1) 

(1) Department of Physics, Hue University's College of Education, 32 

Le Loi, Hue, Vietnam; 

(2) National Education Union of Vietnam, 02 Trinh Hoai Duc, Dong 

Da, Ha noi, Vietnam 

Phonon generation via the Cerenkov effect in cylindrical quantum 

wires (CQW) is theoretically studied based on the quantum kinetic 

equation for phonon population operator. Both electrons and 

phonons are confined in the CQW. Analytical expressions for the 

rate of change of the phonon population and conditions for phonon 

generation are obtained. Numerical results for GaAs/AlAs 

cylindrical quantum wires show that the amplitude of the laser field 

Tp. Hồ Chí Minh, 02-06/8/2010 

must satisfy additional conditions that are different in comparison 

with those of the other works. The differences between the 

generation of acoustic phonon and longitudinal optical phonon are 

considered. Comparisons between two cases of confined phonons 

and bulk phonons are discussed. 


49. Độ linh động và điện trở của khí điện tử trong giếng lượng tử 

SiGe/Si/SiGe ở nhiệt độ khác không 

Vo Van Tai and Nguyen Quoc Khanh 

Trường Đại học KHTN TP HCM, 227 Nguyễn Văn Cừ, Quận 5, TP 

Hồ Chí Minh 

Chúng tôi đã tính độ linh động và điện trở của khí điện tử giả hai 

chiều trong giếng lượng tử Si ở nhiệt độ khác không cho cả hai 

trường hợp có hoặc không có từ trường song song. Mật độ hạt, bề 

dày lớp và nhiệt độ được chọn sao cho tán xạ tạp chất và bề mặt 

nhám là các cơ chế chủ yếu. Các kết quả của chúng tôi có dáng điệu 

phù hợp với các kết quả thực nghiệm. Chúng tôi chỉ ra rằng đối với 

từ trường quanh giá trị bão hòa điện trở hầu như không phụ thuộc 

nhiệt độ. 


50. Two Band Model for Diluted Magnetic Semiconductors: Study of 

the Ferromagnetic Transition Temperature 

Vu Kim Thai and Hoang Anh Tuan 



The ferromagnetic transition temperature (Tc) of a two band model 

for diluted magnetic semiconductors (DMS) is calculated by using 

the coherent potential approximation (CPA). It is shown that Tc is 

strongly parameter dependent such as density of the carriers, 

magnetic coupling constants, and the hopping terms. The maximal 

Tc of the two band model is found when both impurity bands fully 

overlap and this value is approximately twice larger than the highest 

Tc obtained in the single band model. 


51. Density Functional Based Tight Binding Study on Wurzite Coreshell 

Nanowires Heterostructures ZnO/ZnS. 

N.T. Thuong, N.V. Minh, N.N. Tuan, V.N. Tuoc 

Hanoi University of Technology, 1 Dai Co Viet, Hai Ba Trung, Ha 

Noi 

We present a Density Functional Based Tight Binding study on 

the structural and electronic structure of II-VI wurtzite coreshell, 

core- multi-shell ZnO/ZnS hexagonal unsaturated 

nanowires of circular and hexagonal cross section shapes and 

examine the dependence of interface stress and formation 

energy on nanowire lateral size with diameter range from 20Å 

upto 40Å. Wire’s Young’s modulus along the axial growth 

direction have been estimated. Also the tensile test have been 

applied for various wires to show the diameter dependence’s of 

their mechanical properties. The electronic properties of these 

heterostructure nanowire (e.g. Projected Band Structure, 

Density of State, charge transfer via Mulliken population 

analysis) also exhibit wire’s diameter dependence behaviors. 


52. Electron Scattering from Polarization Charges Bound on a 

Rough Interface of Uniformly-Doped ZnO/Zn1‐xMgxO 

Heterostructure 

Le Tuan (1) and Nguyen Thanh Tien (2) 

(1) Institute of Engineering Physics, Hanoi University of Science and 

Technology, 1 Dai Co Viet Road, Hanoi, Vietnam (2) College of 

Science, Can Tho University, 3-2 Road, Can Tho City, Vietnam 

We present a theory of polarization surface roughness (PSR) 

scattering mechanism for electrons in the conduction channel of 

actual ZnO/Zn 1-x Mg x O heterostructures of the both O- and Zn-polar 

faces in ZnO layer. In combination with the normal surface 

roughness (SR) scattering from roughness-induced fluctuations in 

the potential barrier position, the carriers must be extra scattered 

from the polarization charges bound on a rough interface of the 

heterostructure. This ad hoc scattering mechanism tends to reduce 

carrier mobility down to a half of value in comparison with the one 


55 

56 

Tp. Hồ Chí Minh, 02-06/8/2010

due to SR counterpart. The different doping levels in the barrier and 

channel regions of heterostructures remarkably affect on 

background impurity, alloy disorder and SR/PSR scattering rates 

and lead to correction to the value of carrier mobility, which has not 

been considered so far. 


quả của chúng tôi qui về kết quả của các tác giả khác nhận được 

trước đây khi không có từ trường hoặc nhiệt độ bằng không. Chúng 

tôi chỉ ra rằng sự phụ thuộc nhiệt độ của hàm điện môi ảnh hưởng 

đáng kể lên sự phụ thuộc nhiệt độ của điện trở. 


53. The Magnetic Casimir Effect between two Parallel Ferromagnetic 

Plates 

Do Phuong Lien (1) and Nguyen Anh Tuan (2) 

(1) Institute of Engineering Physics (IEP), Hanoi University of 

Technology (HUT) 

(2) International Training Institute for Materials Science (ITIMS), 

Hanoi University of Technology (HUT) 

In this work, we study theoretically the long-range magnetic 

interaction between two parallel ferromagnetic plates, which arises 

from the magnetic Casimir effect. The behavior of the interaction is 

discussed for two configurations when the magnetization is 

perpendicular or parallel to the plates. The dependence of the 

Casimir force and Casimir energy on different interplate distances D 

has been investigated. Results of numerical calculations for a 

concrete system have been also presented. 


54. Độ linh động và điện trở của khí điện tử trong cấu trúc dị thể 

AlGaAs/GaAs ở nhiệt độ khác không 

Truong Van Tuan and Nguyen Quoc Khanh 

(1) Trường sĩ quan kỹ thuật quân sự, 189 Nguyễn Oanh, Quận Gò 

vấp, TP Hồ Chí Minh; 

(2) Trường Đại học KHTN TP HCM, 227 Nguyễn Văn Cừ, Quận 5, 

TP Hồ Chí Minh 

Sử dụng phương trình Boltzmann bán cổ điển chúng tôi đã tính độ 

linh động và điện trở của khí điện tử giả hai chiều trong cấu trúc dị 

thể AlGaAs/GaAs ở nhiệt độ khác không cho cả hai trường hợp có 

hoặc không có từ trường song song. Chúng tôi xét trường hợp khi 

tán xạ tạp chất và bề mặt nhám là các cơ chế tán xạ chủ yếu. Các kết 


57 

58 

Tp. Hồ Chí Minh, 02-06/8/2010 

III. Vật lý thống kê, tinh thể, kim loại, hợp kim. 

55. Investigation of the EXAFS Cumulants of Silicon and 

Germanium Semiconductors by Statistical Moment Method: 

Pressure Dependence 

Ho Khac Hieu (1), Vu Van Hung (2), and Nguyen Van Hung 

(3) 

(1) National University of Civil Engineering, 55 Giai Phong Street, 

Hanoi, Vietnam; (2) Hanoi National University of Education, 134 

Xuan Thuy Street, Hanoi, Vietnam; (3) University of Science,VNU 

Hanoi, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam 

Using the statistical moment method (SMM), the pressure 

dependence of EXAFS cumulants of silicon and germanium have 

been investigated. The analytical expressions of the first and second 

cumulants of silicon and germanium have been derived. The 

agreements of our calculations with other theoretical results and 

experimental data support for our new theory in investigating the 

pressure dependences of EXAFS cumulants of semiconductors. 

Futhermore, the equation of state of silicon and germanium 

semiconductors have been obtained. The lattice parameters and the 

change of volume under hydrostatic pressure P of these 

semiconductors also have been estimated. 


56. Boron and Phosphorus Diffusion in Silicon: Interstitial and 

Vacancy Mechanisms 

Vu Van Hung (1), Phan Thi Thanh Hong (2), and Bui Van 

Khue (3) 

(1) Hanoi National University of Education, 136 Xuan Thuy street, 

Cau Giay, Hanoi, Vietnam 2) Hanoi Pedagogices University No 2, 

Xuan Hoa, Me Linh, Vinh Phuc (3) Hai Phong University, 171 Phan 

Dang Luu, Kien An, Hai Phong 

The diffusion of boron B and phosphorus P in silicon has been 

investigated by using statistical moment method (SMM). 

Temperature dependence of activation energy and diffusion 

coefficient of B and P in silicon obey interstitial and vacancy 

mechanisms has been studied. the effects of anharmonicity and the 

59 


60 

different mechanisms on diffusion of b and P in silicon are 

calculated. Experimental results for B and P diffusion in silicon and 

SMM calculations of the activation energy for B and P diffusion by 

interstitial mechanism are in quantitave agreement. 


57. Melting of Metals Cu, Ag and Au under Pressure 

Pham Dinh Tam (1), Nguyen Quang Hoc (2), Phung Dinh 

Phong (3), and Pham Duy Tan (1) 

(1) Le Quy Don University of Technology, 100 Hoang Quoc Viet, Cau 

Giay, Hanoi 

(2) Hanoi National University of Education, 136 Xuan Thuy, Cau 

Giay, Hanoi 

(3) Hanoi University of Education No.2, Me Linh, Hanoi 

The dependence of the melting temperature of metals Cu, Ag and 

Au on pressure in the interval from 0 to 40 kbar is studied by the 

statistical moment method. This dependence has the form of near 

linearity and the calculated slope of melting curve is 3.9 for Cu, 5.8 

for Ag and 6.1 for Au. These results are in good agreement with the 

experimental data 


58. Specific Heat at Constant Volume for Molecular Cryocrystals of 

Nitrogen Type 

Nguyen Quang Hoc (1) and Tran Quoc Dat (2) 


Giay, Hanoi 

(2) Tay Nguyen University, 456 Le Duan, Buon Me Thuot City 

Specifics heats at constant volume of molecular cryocrystals of N 2 

type are studied by combining the statistical moment method and 

the self-consistent field method taking account of lattice vibrations 

and molecular rotational motion. Theoretical results are applied to 

molecular cryocrystals of N 2 type such as N 2 , CO, N 2 O and CO 2 

cryocrystals and numerical results are compared with the 

experimental data. 


Tp. Hồ Chí Minh, 02-06/8/2010

59. Melting Curve of Metals: Pressure Dependence 

Vu Van Hung (1), Dang Thanh Hai (2), and Le Thi Binh (1) 

(1) Hanoi National University of Education, 136 Xuanthuy, Caugiay, 

Hanoi 

(2) Vietnam Education Publishing House, Tran Hung Dao, Hai Ba 

Trung, Ha Noi 

The high-pressure melting curve of metals has been studied using 

the statistical moment method. The melting was investigated at 

different high pressures, the melting temperature being in good 

agreement with previous experiments and several theoretical 

calculations. A small slope for the melting dT/dP curve of metals is 

estimated and a possible explanation for this behaviour is given. 

Finally, a P -V - T equation of states is obtained, the temperature 

and pressure dependences of the shear modulus and the bulk 

modulus being estimated. 


60. Investigation of Thermodynamic Properties Liquid Cu – Ni 

Alloys Using Moment Method 

Nguyen Thanh Hai 

Institute of Engineering Physics, Hanoi University of Technology, 1 

Dai Co Viet, Hai Ba Trung, Ha Noi 

Using the model of liquid alloys having structural similar solid 

alloys at melting temperature, the expressions nearest-neighbour 

distance of liquid alloy are obtained. The change in volume, 

entropy, specific heat of alloys on melting at the pressure P=0 is 

investigated. Our obtain results are applied to numerical calculations 


61. Study of Thermodynamic Properties of Zirconium under High 

Pressure 

Vu Van Hung, Le Dinh Hong, and Nguyen Thu Ha 

Hanoi University of Education 136 Xuan Thuy, Cau Giay, Ha Noi 

The moment method in statistical (SMM) dynamics is used to study 

the thermodynamic quantities of zirconium taking into account the 

anharmonicity effects of the lattice vibrations and hydrostatic 


61 

pressures. The thermodynamic quantities of zirconium are 

calculated as a function of the pressure. The SMM calculations are 

performed by using the Lennard-Jones potential for the zirconium 

crystal with hcp and bcc structures. Numerical results for lattice 

parameter, thermal expansion coefficient, specific heats at constant 

volume and those at the constant pressure CV and CP of zirconium 

crystal with bcc and hcp structures are found to be in good 

agreement with experiment. 


62. Study of Elastic Properties of CeO 2 by Statistical Moment 

Method 

Vu Van Hung (1), Le Thi Mai Thanh(1), and 

K. Masuda-Jindo (2) 

(1)Hanoi National University of Education, 136 Xuan Thuy, Hanoi, 

Vietnam 

(2) Department of Material Science and Engineering, Tokyo Institute 

of Technology, Nagasuta, Midori-ku, Yokohama 226-8530, Japan 

The purpose of the present article is to investigate the temperature 

and pressure dependences of the elastic properties of cerium dioxide 

using the statistical moment method (SMM). The equation of states 

of bulk CeO 2 is derived from the Helmholtz free energy, and the 

pressure dependences of the elastic moduli like the bulk modulus, 

BT, shear modulus, G, Young’s modulus, E, and elastic constants 

(C11, C12 and C44) are presented taking into account the 

anharmonicity effects of the thermal lattice vibrations. In the present 

study, the influence of temperature and pressure on the elastic 

moduli and elastic constants of CeO 2 have also been studied, using 

three different interatomic potentials.. We compare the results of the 

present calculations with those of the previous theoretial 

calculations as well as with the available experiments 


63. Structural and Dynamics Properties of Lithium Silicate 

Nguyen Thu Nhan and Pham Khac Hung 

Department of Computational Physics, Hanoi University of Science 

and Technology, Vietnam 

62 

Tp. Hồ Chí Minh, 02-06/8/2010 

The diffusion mechanism in silicate melts is a long debated topic in 

material science. The present paper focuses on to give new insight 

in this problem based on the comparative study for pure and lithium 

silicate melts (SiO 2 and (Li 2 O) 0.1 .(SiO 2 ) 0.9 ). Both silicate models 

consisting of 3000 atoms have been prepared at ambient pressure 

and temperature from 1500 to 4000 K. The simulation reveals a 

significant difference in the tetrahedral-network structures which 

results in the change in the diffusion mechanism of silicon and 

oxygen. The local structure of both melts is also analyzed and 

discussed here. 


64. Order – Disorder Phase Transition in Cu 3 Au under Pressure 

Pham Dinh Tam (1), Nguyen Quang Hoc (2), Le Tien Hai 

(1), and Pham Duy Tan (1) 

(1) Le Quy Don University of Technology, 100 Hoang Quoc Viet, Cau 

Giay, Hanoi 


Giay, Hanoi 

The dependence of the critical temperature Tc for alloy Cu 3 Au on 

pressure in the interval from 0 to 30 kbar is studied by the statistical 

moment method. The calculated velocity of critical temperature 

changing to pressure is 2.1K/ kbar in the interval from 7 to 21 kbar 

and this result is in a good agreement with the experimental data. 


65. Study of Elastic Properties of Quantum Crystals by Statistical 

Moment Method 

Vu Van Hung, Hoang Van Thai, and Dinh Quang Vinh 

Hanoi National University of Education, 136 Xuan Thuy, Hanoi, 

Vietnam 

Temperature and pressure dependences of the elastic properties of 

quantum crystals have been studied using the analytic statistical 

moment method (SMM). The equation of states of the quantum 

crystals is derived from the Helmholtz free energy, and the pressure 

dependences of the elastic moduli like the bulk modulus, BT, shear 

modulus, G, Young’s modulus, E, and elastic constants (C11, C12 

63 


64 

and C44) are presented taking into account the anharmonicity 

effects of the thermal lattice vibrations. In the present study, the 

influence of temperature and pressure on the elastic moduli and 

elastic constants of Ar, Kr, and Xe have also been studied, using the 

Lennard-Jones potentials and we compare the SMM results with 

those of the previous theoretial calculations as well as with the 

available experimental results. 


66. A Thermodynamic Lattice Theory on Lindemann’s Melting 

Temperature and Eutectic Point of FCC Binary Alloys 

Nguyen Van Hung, Nguyen Cong Toan, Tong Sy Tien, 

Nguyen Bao Trung 

Department of Physics, University of Science, VNU-Hanoi. 334 

Nguyen Trai, Thanh Xuan, Hanoi 

A thermodynamic lattice theory has been developed for 

determination of the melting curves and eutectic points of fcc binary 

alloys. Based on Lindemann’s criterion the analytical expressions 

for the ratio of root mean square fluctuation in atomic positions on 

the equilibrium lattice positions and the nearest neighbor distance, 

and then from which those for the melting curves of binary alloys 

composed by fcc constituent elements have been derived. This 

melting curve provides information on Lindemann’s melting 

temperatures of binary alloys with respect to any proportion of 

constituent elements and on their eutectic points. Numerical results 

for some fcc binary alloys provide a good correspondence between 

the calculated and experimental phase diagrams, where the 

calculated results for Cu 1-x Ni x agree well with the measured values. 


67. Atomic Radii of Noble Gas Elements in Condensed Phases 

Nguyen Quang Hoc and Dinh Quang Vinh 

Hanoi National University of Education, 136 Xuan Thuy, Cau Giay, 

Hanoi 

Neutral atomic radii of dissolved noble gas elements in condensed 

phases are obtained by treating the neutral atoms as “ions” of zero 

Tp. Hồ Chí Minh, 02-06/8/2010

oxidation state and by interpolating from a plot of radius vs. 

oxidation state for isoelectronic ions. The major assumption is that 

the radius of an ion or a neutral atom having an electronic 

configuration of noble gas elements depends primarily on the 

interaction between the nucleus and the surrounding electrons and 

not on the interaction between the ion and its neighbours. As 

expected, the values of the new set of radii are slightly greater than 

the univalent radii and smaller than the radii of noble atoms in their 

crystals in which the coordination number is 12 


IV. Vật lý lượng tử, quang lượng tử, thông tin lượng tử 

68. Engineered Spin Chains for Perfect Quantum State Transfer 

Nguyen Van Hieu and Nguyen Bich Ha 

Max-Planck Institute for the Physics of Complex Systems, Dresden, 

Germany and Institute of Materials Science, Vietnam Academy of 

Science and Technology 

For the application to the quantum information processing 

technology the quantum state transfer (QST) between two directly 

interacting qubits as well as between two distant ones interacting 

through the intermediary of different quantum systems were widely 

considered. As the intermediary system it was proposed to use that 

of photons in an optical fiber for the case of the QST between two 

quantum dots placed inside two microcavities connected through 

this optical fiber [1-4], or a network of interacting spins in the case 

of the QST between two spin-qubits interacting with this network 

[5-10]. It is known that the perfect QST from one end of a 

homogeneous N-qubit chain to another is possible only for 

N = 2 and 3. In order to achieve the perfect QST it was proposed to 

use engineered spin chains with untunable but modulated coupling 

between adjacent spins, and a special version of engineered spin 

chains allowing the perfect QST was found in literature. The 

purpose of this work is to establish a wide class of engineered 

inhomogeneous mirror-symmetric N-spin chains with modulated 

untunable couplings which can provide the perfect QST between 

two ends of each chain. It includes as special cases the spin chains 

previously proposed. The sufficient conditions for the engineered 

mirror-symmetric spin chains allowing the perfect QST are derived. 

From these conditions the algebraic equations determining physical 

parameters of these spin chains are established. By solving these 

equations we can obtain the sets of values of these physical 

parameters. Examples of the chains with even and odd numbers of 

spins are presented. References [1] Cirac J I, Zoller P, Kimble H J and 

Mabuchi H 1997 Phys. Rev. Lett. 78 3221 [2] Pellizzari T 1997 Phys. Rev. 

Lett. 79 5242 [3] Serafini A, Mancini S and Bose S 2006 Phys. Rev. Lett. 96 

010503 [4] Nguyen Van Hieu, Nguyen Bich Ha and Duong Hai Trieu 2010 

Adv. Nat. Sci.: Nanosci. Nanotechnol. 1 015001 [5] Lloyd S 2003 Phys. 


65 

66 

Tp. Hồ Chí Minh, 02-06/8/2010 

Rev. Lett. 90 167902 [6] Bose S 2003 Phys. Rev. Lett. 91 207901 [7] 

Christandl M, Datta N Ekert A and Landahl A J 2004 Phys. Rev. Lett. 92 

187902 [8] Albanese C, Christandl M, Data N and Ekert A 2004 Phys. Rev. 

Lett. 93 230502 [9] Karbach P and Stolze J 2005 Phys. Rev. A 72 030301 

[10] Nguyen Van Hieu 2009 J. Phys.: Condens. Matt. 21 273201 


69. Detecting Entanglement with non-Hermitian Operators 

Ho Trung Dung 

Ho Chi Minh city Institute of Physics, 1 Mac Dinh Chi Str., District 1, 

Ho Chi Minh city, Vietnam 

We derive several entanglement conditions employing nonhermitian 

operators. We start with two conditions that were derived 

previously for field mode operators, and use them to derive 

conditions that can be used to show the existence of field-atom 

entanglement and entanglement between groups of atoms. The 

original conditions can be strengthened by making them invariant 

under certain sets of local unitary transformations, such as Gaussian 

operations. We then apply these conditions to several examples, 

such as the Dicke model. Further, we present conditions that allow 

us to determine whether blocks of spins are entangled. We show 

that sometimes these conditions can detect entanglement better than 

conditions involving individual spins. We apply these conditions to 

study entanglement in spin wave states, both when there are only a 

few magnons present and also at finite temperature. 


70. Construction of Potential Energy Curves for Diatomic Molecules 

by the Inverted Perturbation Approach. 

Dinh Xuan Khoa(1), Nguyen Tien Dung(1), Pham Van 

Trong(2), and Nguyen Huy Bang(1) 

(1)Vinh University, 182 Le Duan Street, Vinh City, Vietnam; (2) 

Hong Duc University, Thanh Hoa, Vietnam. 

Knowing of potential energy curves (PEC) of diatomic molecules 

plays important role in atomic and molecular physics because it can 

provide information for prediction of atomic colissions, chemical 

bondings, and dispersion forces. Construction of PECs from 


67 

experimental data therefore attracts great attention of 

spectroscopists. There are revelral ways to archieve this goal. 

Perhaps the simplest one is to fit the data to the simple Morse 

function in which only two adjustable parameters to be determined. 

More adjustable parameters can be introduced to get more flexible 

form of PEC, but however for modern accurate spectroscopic 

measurements such models are not sufficient enough for 

interpretation of overal data. Up-to-date, the most efficient method 

for construction of a PEC which is satisfy a given accurate demand 

is the Inverted Perturbation Approach (IPA). The method was 

proposed by Kosman et al [1] and Vidal et al [2] and then developed 

by Pashov et al [3] as a fully quantum mechanical method for 

searching an accurate potential energy curve of a diatomic 

molecular state. In this paper we present the IPA method and 

discuss its aspects for construction of PEC of diatomic molecules. The 

method is then applied to the 4Pi state of NaLi molecule. Here, the 

previous PEC which was determined numerically by the semi-classical 

Rydberg-Klein-Rees method reported in the previous work [4] is 

employed as a trial function in the IPA procedure to search an optimum 

potential energy. The final IPA potential confirms results determined by 

recent theoretical ab initio calculations [5]. 

References 

[1] W. Kosman et al., J. Mol. Spectrosc. 56 (1975) 93. [2] C. Vidal 

et al., J. Mol. Spectrosc. 65 (1977) 46. [3] A. Pashov et al., Comput. 

Phys. Commun 128 (2000) 622. [4] Nguyen Huy Bang et al., 

Chem. Phys. Lett, 440 (2007) 199. [5] N. Mabrouk et al., J. Phys. B: 

At. Mol. Opt.Phys. 41 (2008) 155101. 


71. Distributuion of the Laser Intensity and the Force acting on 

Dielectric Nano-Particle in the 3D-Optical Trap using Counterpropagating 

Pulsed Laser Beams 

Ho Quang Quy (1), Bui Sy Khiem (2), Nguyen Thi Ha 

Trang (3), Chu Van Lanh (3) 

(1) Academy of Military Science & Technology, Hoang Quoc Viet, 

Cau Giay, Ha Noi 

(2) Second High Secondary School of Tinhgia, Thanhhoa 

(3) University of Vinh, Le Duan, Vinh, Nghe An 

68 

Tp. Hồ Chí Minh, 02-06/8/2010

In this article the 3D-optical trap using counter-propagating laser 

beams is proposed. The expressions described the space-distribution 

of laser total intensity, and related optical forces acting on the 

dielectric nano-particle are derived. Some simulated results are 

presented and discussed. 


72. Operator Method for Exactly Solving Schrodinger Equation for 

Atoms 

Nguyen Phuong Duy Anh (1), Cao Ho Thanh Xuan (2), 

Nguyen Van Hoa (3), Le Van Hoang (3) 

(1) Thu Dau Mot University, 6 Tran Van On, Phu Hoa, Thu Dau Mot 

City, Binh Duong Province 

(2) Southern Agriculture College,Tan My Chanh, My tho City, Tien 

Giang Province 

(3) Ho Chi Minh City University of Pedagogy, 280 An Duong Vuong, 

Dist. 5, Ho Chi Minh City 

We show that the operator method (OM) using the Laplace 

transformation can be effectively applied to solve the Schrodinger 

equation for atoms. Detailed calculations performed on the 

hydrogen atom demonstrate convergence of perturbation series. 

Moreover, we can use the free parameter to regulate the rate of 

convergence. The basis set (the wave-function of a harmonic 

oscillator) in the form of annihilation and creation operators is very 

convenient to calculate the matrix elements using purely algebraic 

method applicable to other atoms. This result is the first step in an 

effort to apply non-perturbation method such as OM for atomic 

systems. 


The Casimir force between Au and Si bodies is computed in 

different configurations by basing on Lifshitz theory with describing 

a dielectric for metal and semiconductor by means of plasma model 

and Drude model, respectively. The most precise experiments 

between a large Au sphere and Si plate demonstrate that in 

comparison with the experimental Casimir force, the theoretical 

calculation has from 0.5% to 7% error. The graphs offered in this 

paper opens predictions for measurement in the future. 


73. The Casimir Interaction between Au and Si in Arbitrary 

Configurations 

Phan Duc Anh, Chu Thuy Anh, Ngo Van Thanh, and 

Nguyen Ai Viet 




69 

70 

Tp. Hồ Chí Minh, 02-06/8/2010 

74. Construction of Potential Energy Curve for the 3Pi State of NaLi 

Nguyen Tien Dung, Dinh Xuan Khoa, Vu Ngoc Sau, Nguyen 

Thanh Vinh, Tran Manh Cuong, and Nguyen Huy Bang 

Vinh University, 182 Le Duan Street, Vinh City, Vietnam. 

This paper presents construction of an accurate potential energy 

curve (PEC) for the 3Pi state of NaLi molecule by means of the 

Inverted Perturbation Approach (IPA). The previous PEC which 

was determined numerically in the framework of semi-classical 

Rydberg-Klein-Rees (RKR) method reported in the previous work 

[5] is used as a trial function in the IPA procedure to search an 

optimum potential energy. The optimum PEC (refered as IPA PEC) 

reproduces 380 observed spectral lines of the 3Pi←1Sigma band of 

NaLi with a dimesionless standard deviation 0.67. It is determined 

numerically in a grid of 0.1Çº in the region ranging from 2.5 to 5.0 

Çº of internuclear distance, which coveres the overal experimental 

data. The obtained PEC can used to compare with recent ab initio 

calculations in [6,7]. References [1] W. Kosman, J. Hinze, J. Mol. 

Spectrosc. 56 (1975) 93. [2] C. Vidal, H. Scheingraber, J. Mol. 

Spectrosc. 65 (1977) 46. [3] A. Pashov et al., Comput. Phys. 

Commun 128 (2000) 622-634. [4] G. Herzberg, Molecular Spectra 

and Molecular Structure I. Spectra of Diatomic Molecules (Van 

Nostrand, Princeton, 1955). [5] Nguyen Huy Bang et al., Chem. 

Phys. Lett, 440 (2007) 199-202 [6] I. D. Petsalakis et al., J. Chem. 

Phys., 129, 054306 (2008) [7] N. Mabrouk et al., J. Phys. B: At. 

Mol. Opt.Phys. 41 (2008) 155101 (15pp) . 


75. Possibility of Entanglement Transferal in Uniform Electric Field 

Hui-Min Lin and Chia-Chu Chen 

National Cheng-Kung University, Physics Department, 1 University 

Road, Tainan, Taiwan 

By using the Rashba Hamiltonian, the evolution of spin 

entanglement of two spin-1/2 particles in a homogeneous electric 

field is investigated. It is shown that Bell states become disentangle 

within finite time and there exist un-entangled spin states which stay 

un-entangled during evolution. The correlations among spin-spin, 

momentum-momentum and spin-momentum entanglements are 

discussed in detail. Moreover, a state is constructed to illustrate the 

fact that spin-momentum entanglement is solely a dynamical effect 

which can arise without any entanglement of the other degree of 

freedom. The results are also extended to the mixed states where 

Werner states are treated. 


76. Chuyển động tương đối và chuyển động Chaos 

Phan Hoang Chuong 

Trường Đại Học Công Nghệ Thông Tin, Đại Học Quốc Gia Tp. Hồ 

Chí Minh, Kp6 Phường Linh Trung, Thủ Đức, Hồ Chí Minh 

Như trong chuyển động Brown các hạt chuyển động ziczac phức 

tạp mà sau là hình ảnh đặc trưng của chuyển động nhiệt phân tử. 

Trong chuyển động nhiệt, ngoài chuyển độ ziczac hỗn loạn còn có 

các dao động như vậy trong chuyển động Brown cũng có dao động. 

Ngoài những dao động nhiệt do năng lượng hấp thu từ photon nhiệt 

còn có những dao động biểu kiến do quan sát từ hệ ngoài. Theo 

quan điểm chuyển động tương đối, hệ ngoài xem như hệ thống 

đứng yên, hệ chuyển động gắn với hạt chuyển động với vận tốc 

ngẫu nhiên. Từ phép biến đổi Lorentz ta có thể nhận được biểu thức 

của dao động biểu kiến nếu dựa vào các đặc tính của chuyển động 

Chaos. 



71 

77. Phương trình Schrodinger và phương trình truyền nhiệt Chaos 

Phan Hoang Chuong 

72 

Tp. Hồ Chí Minh, 02-06/8/2010

Trường Đại Học Công Nghệ Thông Tin, Đại Học Quốc Gia Tp. Hồ 

Chí Minh, Kp6 Phường Linh Trung, Thủ Đức, Hồ Chí Minh 

Phương trình Schrodinger là phương trình mô tả chuyển động của 

các hạt vi mô dưới dạng các hàm sóng, mặc dù không có dạng của 

phương trình sóng thông thường trong vật lý toán (không chứa đạo 

hàm cấp hai của thời gian). Mặt khác các hạt vi mô còn có tính hạt, 

tức là chuyển động thành dòng hạt. Từ đặc tính của chuyển động 

chaos ta có thể đưa phương trình Schrodinger về dạng phương trình 

truyền nhiệt thông thường với các biến Wiener. Từ đây có thể thấy 

các hạt chuyển động tựa dòng nhiệt và ta có thể thu được nghiệm 

phương trình mô tả hạt với thế đóng vai trò nguồn nhiệt. 


78. Influences of the Coupling Field on EIT Formation of the Threelevel 

Lambda Configuration of Rb 87 

Nguyen Hoang Minh Tri (1), Vo Phuoc Huy (2), Dinh Xuan 

Khoa (3), Le Van Doai (3), Hoang Hong Khue (3), and 

Nguyen Huy Bang (3) 

(1) Faculty of Physics, Dong Thap University, 783 Pham Huu Lau 

Str., Dong Thap City, Vietnam; 

(2) Faculty of pedagogy, Bac Lieu University, 108 Vo Thi Sau Str., 

Bac Lieu Town, Vietnam; 

(3)Faculty of Physics, Vinh University, 182 Le Duan Str., Vinh city. 

In this work we investigate electromagnetically induced 

transparency (EIT) properties of cold Rb 87 atom formed by two 

laser beams, a strong coupling beam and a weak probe beam, via 

the three-level lambda excitation scheme. The response of the atom 

for the probe beam under the excitation of the coupling beam is 

represented by using density matrix formalism within the electric 

dipole and rotating wave approximations. In the regime of weak 

strength of the probe laser field, the matrix element which 

corresponds to the probe transition is derived analytically. We then 

consider influences frequency detuning and intensity of the coupling 

field on the absorption and dispersion coefficients on of the coupling laser 

field. 

References 

[1] S.E. Harris, J.E. Field, A. Imamoglu, Phys. Rev. Lett. 64 (1990) 

1107. 

73 


[2] K.J. Boller, A. Imamoglu, S.E. Harris, Phys. Rev. Lett. 66 

(1991) 2593. 

[3] B.S.Ham, J. Mod. Opt. 49 (2002) 2477. [4] L.V. Hau, S. E. 

Harris, Z, Dutton, C.H. Bejroozi, Nature 397 (1999) 594. 

[5] M.D. Eisaman, A. Andre, F. Massou, M. Fleischhauer, A.S. 

Zibrov, M.D. Lukin, Nature 438 (2005) 837. 

[6] D.A. Braje, V. Balic, S. Goda, G.Y. Yin, S.E. Harris, Phys.Rev. 

Lett. 93 (2004) 183601. 

[7] H. Lee, M. Fleischhauer, M.O. Scully, Phys. Rev. A58 (1998) 

2587. 

[8]. Yong-qing Li and Min Xiao, Phys. Rev. A51 (1995) R2703- 

2706. 

[9] J. Gea-Banacloche, Yong-quing Li, Shao-zheng Jin, and Min 

Xiao, Phys. Rev A51 (1995) 576. 

[10] Cohen Tannoudji: Manipulating atoms with photons, Nobel 

lecture in Physics, 1997. 


79. Calculation of Vibrational Intensity Distribution for the 4Pi - 

1Sigma Band of NaLi 

Dinh Xuan Khoa (1), Pham Quoc Linh (2), Nguyen Van 

Thinh (3), Nguyen Tien Dung (1), Le Canh Trung (1), and 

Nguyen Huy Bang (1) 

(1)Vinh University, 182 Le Duan Street, Vinh City, Vietnam; 

(2) Ca Mau ethnic boarding senior high school, Ca Mau City, 

Vietnam; 

(3) Bac Lieu University, 108 Vo Thi Sau Str., Bac Lieu Town, 

Vietnam. 

Within the Born-Oppenheimer approximation a molecular state is 

represented by the so-called radial Schrödinger dinger equation. By 

solving this equation one can obtain level energies together 

vibrational wave functions for the molecule. The calculated wave 

functions are then used perform the integration followed the Franck- 

Condon principle giving pattern of vibrational intensity distribution. 

In this paper we present our numerical calculation of vibrational 

intensity distribution for the 4Pi-1Sigma band of NaLi molecule by 

using Franck-Condon principle. We also determine internuclear 

distances at which spectral intensity is extreme. The calculated 

74 

Tp. Hồ Chí Minh, 02-06/8/2010 

pattern of spectra is compared to recent experimental observations. 

We discuss deviations between the calculated and experimental 

results. 


80. On the Molecular Constants of Diatomic Molecules 

Nguyen Tien Dung (1), Nguyen Van Thinh (2), Le Canh Trung 

(1), Dinh Xuan Khoa (1), and Nguyen Huy Bang (1) 

(1) Faculty of Physics, Vinh University, 182 Le Duan Str., Vinh City, 

Vietnam; 

(2) Faculty of pedagogy, Bac Lieu University, 108 Vo Thi Sau Str., 

Bac Lieu Town, Vietnam. 

In this paper we present a brief theory of molecular constants and a 

procedure of linear least-squares method for determination of 

molecular constants for diatomic molecules. We propose three 

criteria for getting number of constants. The criteria are then used to 

determine molecular constants for 4Pi state of NaLi based on 420 

spectral lines. We test consistency of the determined constants by 

using Kratzer relations. Having the molecular constants, we 

estimate dissociation energy of the 4Pi state and then compare to 

experimental one. We will discuss nature of deviation between our 

calculated and the experimental values of the dissociation energy. 


81. Local-Field Correction in the Strong Atom - Field Coupling 

Regime 

Tran Minh Hien and Ho Trung Dung 

Ho Chi Minh city Institute of Physics, 1 Mac Dinh Chi Str., District 1, 

Ho Chi Minh city 

The problem of local-field correction is typically studied in 

conjunction with the problem of spontaneous decay of an excited 

guest atom embedded in a bulk medium, with the atom-field 

interaction being in the weak-coupling regime. We consider an 

atom enclosed within a microsphere coated by dielectric layers with 

alternating high and low refractive index. The Bragg's reflections 

ensure that the strong atom-field coupling can occur. By taking 


75 

advantage of the real-cavity model and the fact that the Green tensor 

of concentric spheres is known in closed form, we study the effects 

of the local-field correction on the system dynamics, including the 

vacuum Rabi frequency. 


82. Generalization of Dirac and Yang monopoles for 9 -Dimensional 

Space 

Le Van Hoang and Nguyen Thanh Son 

Department of Theoretical Physics, Ho Chi Minh City University of 

Pedagogy, 280 An Duong Vuong, Dist. 5, Ho Chi Minh City 

Using the generalized Hurwitz transformation we found an 

equivalence between a 16-dimensional harmonic oscillator and a 9- 

dimensional hydrogen-like atom in the SO(8) gauge field. Based on 

this finding, we propose a method for establishing a monopole in a 

9-dimensional space which is indeed a generalization of Dirac 

monopole (1931) for 3-dimensional space as well as of Yang 

monopole (1978) for 5-dimensional space. 


83. Entanglement Dynamics of Three-qubit Chain with Decoherence 

Nguyen Van Hop 

Faculty of Physics, Hanoi University of Education, 136 Xuan Thuy, 

Cau Giay, Ha Noi 

Abstract. We study quantum dynamics of three-qubit chain with 

decoherence, this work is devoted to a general theoretical study of 

this system with the decoherence caused by its interactions with the 

environment. The whole system of rate equations is separated into 

different subsystems. All approximative solutions of the system is 

derived and their explicit expressions are presented. The obtained 

results apply to studying entanglement of three-qubit system 

initially prepared in GHZ and W states and transmitted through the 

phase flip channels, amplitude damping as well as the dephase and 

amplitude damping. With the help of the lower bound for threequbit 

concurrence we show that W state preserves more 

entanglement than GHZ state in transmission through the phase flip 

76 

Tp. Hồ Chí Minh, 02-06/8/2010

channels, amplitude damping as well as the dephase and amplitude 

damping. 


84. Tracking the Keto-Enol Tautomerism Process of DNA Base by 

Ultra-Short Laser Pulses using High Harmonic Generation 

Hoang Van Hung, Le Hai My Ngan, Le Thi Cam Tu, 

Nguyen Ngoc Ty, Le Van Hoang 

Department of Theoretical Physics, Ho Chi Minh City University of 

Pedagogy, 280 An Duong Vuong, Dist. 5, Ho Chi Minh City 

Using the molecular dynamics method within Born-Oppenheimer 

approximation implemented in the GAUSSIAN, we simulate the 

keto-enol tautomerism process of thymine, one of the four bases of 

the DNA molecule. By analyzing the high-order harmonic spectra 

emitted from thymine while interacting with ultra-short laser pulses 

during the chemical reaction path of the tautomerism, we identify 

the intensity peaks nearby the stable states (keto and enol) as well as 

transition state. This finding might be a useful tool for tracking the 

DNA tautomerism, the reason of gene mutation. 



77 

85. The two-Mode Squeezed Pair Coherent States and Their Non- 

Classical Properties 

Truong Minh Duc and Nguyen Thi Nguyet 

Physics Department, Hue University of Pedagogy, 32 Le Loi street, 

Hue city 

Tel: 0912056566 

E-mail:tyduc@yahoo.com 

In this paper, we study the non-classical properties of the two-mode 

squeezed pair coherent states such as squeezing, entanglement and 

antibunching. We show that these states exhibit fully the two-mode 

squeezing, the two-mode entanglement and the two-mode 

antibunching. The difference properties of these states and the pair 

coherent states were given more detail in the conclusion. 


86. Các không gian Sobolev và vấn đề giá trị trung bình của toán tử 

vật lý 

Phan Thi An Nhan (1), Pham Hong Phong (2), and Nguyen 

Vinh Quang (3) 

78 

Tp. Hồ Chí Minh, 02-06/8/2010 

(1) Đại học Cần Thơ, 3/2 Ninh Kiều, Cần Thơ 

(2) Viện Vật lý, Hà Nội, 10 Đào Tấn, Ba Đình, Hà Nội 

Dùng các không gian Sobolev để mô tả miền xác định của các toán 

tử Vật lý.Nhờ đó làm rõ nguyên nhân của hiện tượng:các giá trị 

trung bình của nhiều toán tử Vật Lý tại trạng thái cơ bản của 

Nguyên tử Hydrogen bằng vô cùng. 


87. Các không gian Sobolev và vấn đề các tích phân chuyển động 

Nguyen Chanh Qui (1), Pham Hong Phong (2), and Nguyen 

Vinh Quang (2) 

(1) Đại học Cần Thơ, Đường 3/2 Quận Ninh Kiều, Cần Thơ 

(2) Viện Vật lý, Hà Nội, 10 Đào Tấn, Ba Đình, Hà Nội 

Dùng các không gian Sobolev để mô tả miền xác định của các toán 

tử Vật lý. Dẫn ra hệ thức mới(khác điều vẫn được trình bày trong 

các sách từ trước tới nay)để mô tả điều kiện cần và đủ để một toán 

tử là tích phân chuyển động. 


88. Soliton Solutions of Higher-order Nonlinear Schrodinger 

Equation 

Vu Ngoc Sau (1), Doan Hoai Son (2), Nguyen Van Phu (2), 

Nguyen Huy Bang (2), and Cao Long Van (3), Nguyen Minh 

Hai (3) 

(1)Faculty of Technology, Vinh University, Vietnam; 

(2) Faculty of Physics, Vinh University, Vietnam; 

(3) Faculty of Physics and Astronomy, University of Zielona Gora, 

Poland; 

(4) Thanh Binh 1 High School, Dong Thap Province, Vietnam. 

Propagation of femto-second or subfemto-second optical pulses in 

single mode fibers is of interest in optical communication because 

of its potential for high data rate transmission systems, specially 

when shapes of envelope of the pulses remains constants (solitons). 

In such short time regime, evolution of envelope of the pulses is 

described by the so called generalized Schrödinger equation 

(GNSE) which takes into account nonlinear effect as self phase 


79 

80 

modulation (SPM), group velocity dispersion (GVD), third order 

dispersion (TOD), self-stepening (SS) and stimulated Raman 

scattering (SRS). In this paper we search soliton solutions for the 

GNSE in the presence of all above nonlinear effects by use of 

Jacobian expansion. We see in several cases that even when SRS 

effects taken into account, e.g. all above nonlinear effects are 

considered simultaneously, soliton solutions can be derived. 

REFERENCES 

[1] Hasegawa, A., Tappert, F.D.: Appl. Phys. Lett. 23, 142 (1973) 

[2] Mollenauer, L.F., Stolen, R.H., Gordon, J.P.: Phys. Rev. Lett. 

45, 1095 (1980) 

[3] Konar, S., Sengupta, A.: J. Opt. Soc. Am. B 11, 1644 (1994). 

[4] Kumar, A., Kurz, T., Lauterbon, W.: Phys. Lett. A 235, 367 

(1997) 

[5] Konar, S., Jana, S.: Opt. Commun. 236, 7 (2004) 

[6] Konar, S., Sen, P.K., Kumar, J.: J. Nonlinear Opt. Phys. Mater. 

8, 492 (1999) 

[7] Zhou, C., He, X.T., Chen, S.: Phys. Rev. A 46, 2277 (1992) 

[8] Artigas, D., Torner, L., Torres, J.P., Akhmediev, N.: Opt. 

Commun. 143, 322 (1997) 

[9] Jana, S., Konar, S.: Phys. Lett. A 362, 435 (2007) 

[10] Radhakrishnan, R., Kundu, A., Lakshmanan, M.: Phys. Rev. E 

60, 3314 (1999) 

[11] Anderson, D.: Phys. Rev. A 27, 3135 (1983) 

[12] Malomed, B.A.: Prog. Opt. 43, 71 (2003) 

[13] Handbook of Mathematical Functions, Abramowitz and 

Stegun (ed), NewYork: Dover 1965. 


89. Optical Bistable Effect of Two-Port Nonlinear Fiber Mach- 

Zehnder Interferometer 

Ho Quang Quy (1), Vu Ngoc Sau (2), Nguyen Van Hoa (3), 

Nguyen Thi Thanh Tam (4). 

(1) Academy of Military Science and Technology; (2) Faculty of 

Physics, Vinh University; (3) Faculty of Technology, HongDuc 

University; (4) Faculty of Nature, QuangNam University. 

Tp. Hồ Chí Minh, 02-06/8/2010

In this article, we propose a two-port nonlinear fiber Mach-Zehnder 

interferometer (NFM-ZI). Based on the resolution of the equations 

of waves propagating in the two-port NFM-ZI, the expressions 

describing the relation between output and input intensities are 

found out. The dependence of the bistable character of the outputinput 

intensity relation on initial phase shift, nonlinear refractive 

index and length of optical fiber is surveyed and discussed. The 

results confirm bistable character of the two-port NFM-ZI and its 

operation as the optical bistable device. The results of this work play 

an important role in designing the two-port NFM-ZI in the future. 


90. Quantum Interference Effects in Resonance Fluorescence Spectra 

of a Four-Level Atom Damped by a Broadband Squeezed Vacuum 

T. D. Thanh (1), L. V. Nam (2), D. N. Nghia (1) and N. H. 

Cong (2) 

(1) Ho Chi Minh City University of Food Industry, 140 Le Trong Tan 

Street, Tay Thanh Ward, Tan Phu District, Ho Chi Minh City (2) 

Electric Power University 

In this paper we analyze the steady-state populutions and resonance 

fluorescence spectrum (RFS) of a four-level atom consisting of 

three close by spaced upper levels decaying to a common lower 

level. The atom is driven by strong coherent field and a single 

broadband squeezed vacuum. We consider the interplay between 

the quantum interference and the squeezed field between the three 

possible decay channels. High population inversion and extremely 

narrow emission lines are obtained with moderate Rabi frequencies, 

which are a direct consequence of decay-induced interferences. The 

RFS for a degenerate excited exhibits a high narrowing of the nondegenerated, 

we found that the the sqeezed field breaks the trappy 

condition attained when induced interreference is maximal. 


91. Higher-order Properties of Two-Mode Photon-added Displaced 

Squeezed States 

Truong Minh Duc and Ngo Thi Thuy Trang 

Physics Department, Hue University of Pedagogy, 32 Le Loi street, 

Hue city 

Tel: 0912056566 

E-mail:tyduc@yahoo.com 

We study the higher-order squeezing, the entanglement and the 

antibunching in two-mode photon-added displaced squeezed states. 

We obtain analytic forms of the degree of the higher-order 

squeezing, the entanglement and the antibunching. We show that 

these states exhibit all the higher-order squeezing, the entanglement 

and also have the antibunching behaviors. However, the higherorder 

antibunching may or may not exist depending on the 

parameters of these states. 


92. Dynamic Chemical Imaging of Molecule N 2 by Tomographic 

Method using High Harmonic Generation - Theoretical Analysis of 

Quality Improvement. 

Nguyen Ngoc Ty and Le Van Hoang 

Ho Chi Minh University of Pedagogy, Physics Department 280 An 

Duong Vuong St, Dist. 5, Ho Chi Minh City 

By theoretical simulation, we confirm the recent experimental 

results published by S. Heassler et al. [Nature Physics 6, 200 

(2010)] about dynamical imaging the highest occupied molecular 

orbital (HOMO) and the lower-lying orbital (referred to as HOMO- 

1) of molecule N 2 using high harmonic generation (HHG). The 

`experimental’ HHG data used are simulated by theoretical 

calculation within the strong field approximation using Lewenstein 

model with considering the partial distribution of molecular 

orientation. We also analyze the affection of the plateau region 

limitation on the quality of imaging. We show that the quality of 

tomographic method is much better if the laser of wave length 

1200nm is used instead of 800nm and the quality will be perfect 

with the laser wave length longer than 2400nm. 


93. Photoelectron Spectra Induced by Broad-Band Chaotic Light 

from a Structured Continuum 


81 

82 

Tp. Hồ Chí Minh, 02-06/8/2010 

Van Cao Long, Wieslaw Leoński, and Khoa Doan Quoc 

Quantum Optics and Engineering Division, Institute of Physics, 

Zielona Góra University, ul. Prof. A. Szafrana 4a, 65-516 Zielona 

Góra, Poland 

The different ionization processes of atoms in laser fields are center 

of interest in both theoretical and experimental researches in atomic 

physics since long time. One of the most interesting example of 

these processes is so-called laser induced autoionisation in which a 

nontrivial structure of continuum occurs due to mixing of the 

ionising states with continuum. In this paper we consider a model 

for laser-induced autoionisation introduced before in [1]. Following [2] 

we assume that the laser light is decomposed into two parts: the 

deterministic or coherent part and the one, being randomly fluctuating 

chaotic component, which is a -correlated, Gaussian, Markov and 

stationary process (white noise). This model for the field is interesting by 

itself, because it describes electric field amplitude of the multimode laser, 

operating without any correlation between the modes. We solve a set of 

coupled stochastic integro-differential equations, describing a double Fano 

model for autoionisation. We determine the exact photoelectron spectrum 

and compare it with our results obtained before in [1] and [2]. 

Our paper is organised as follows: After an introduction, in the 

second section we present some details of our model and derive the 

equation for atomic operators. In the third part our results are 

presented and discussed. Instead of presenting rather complicated 

formula (some details of the calculations leading to that formula can 

be found in the appendix) we have restricted ourselves to the two 

interesting physical limits: weak and strong fluctuations. 

References 

[1] W. Leoński, R. Tanaś and S. Kielich 1987 J. Opt. Soc. Am. B4 

72. [2] V. Cao Long, M. Trippenbach 1986 Z. Phys. B 63 267. 


94. Electromagnetically Induced Ionization from Double 

Autoionizing Levels with Lorentzian Continuum 

Wieslaw Leoński, Van Cao Long, and Thuan Bui Dinh 


Zielona Gora University, ul. Prof. A. Szafrana 4a, 65-516 Zielona 

Gora, Poland 

83 


84 

In this communication we shall concentrate on the systems of two 

AI levels ( lebeled by |1> and |2>), coupled to the structured 

continuum |c ) of the Lorentzian shape with the equal to Γ L . All 

these states are excited one and are coupled to some discrete ground 

level |0> by an external coherent electromagnetic field. In fact, 

Lorentzian shaped continuum is equivalent (and can be replaced by) 

to the both: flat continuum |c> and coupled to it third AI level 

|3> . Such replacement can be described in terms of the Fanoprofiles 

theory [5,6]. 

[1] Leonski W, Tanas and Kielich 1987 J. Opt. Am.B 4 72. 

[2] Leonski W and Tanas 1988 J Phys. B:At. Mol. Opt. Phys. 21 

2835. 

[3] Raczynski A, Rzepecka M, Zaremba J and Zielinska-Kaniasty S 

2006 Opt.Commun. 266 552. 

[4]Lewenstein M and Rzcazewski K 2000 Physical review A 61 

022105 

[5] Fano U 1961 Phys. Rev. 124 1866. 

[6] Durand Ph, Paidarova I and Gadea F X 2001 J. Phys. B: At. 

Mol. Opt. Phys 34 1953 

[7] Rzazewski K and Eberly J H 1981 Phys. Rev. Lett. 47 408. 


Tp. Hồ Chí Minh, 02-06/8/2010

95. Photoelectron Spectra Induced by Broad-Band Chaotic Light 

from a Structured Sontinuum 

Van Cao Long, Wieslaw Leoski, and Khoa Doan Quoc 


Zielona GÃ³ra University, ul. Prof. A. Szafrana 4a, 65-516 Zielona 

GÃ³ra, Poland 

The different ionization processes of atoms in laser fields are center 

of interest in both theoretical and experimental researches in atomic 

physics since long time. One of the most interesting example of 

these processes is so-called laser induced autoionisation in which a 

nontrivial structure of continuum occurs due to mixing of the 

ionising states with continuum. In this paper we consider a model 

for laser-induced autoionisation introduced before in [1]. Following 

[2] we assume that the laser light is decomposed into two parts: the 

deterministic or coherent part and the one, being randomly 

fluctuating chaotic component, which is a -correlated, Gaussian, 

Markov and stationary process (white noise). This model for the 

field is interesting by itself, because it describes electric field 

amplitude of the multimode laser, operating without any correlation 

between the modes. We solve a set of coupled stochastic integrodifferential 

equations, describing a double Fano model for 

autoionisation. We determine the exact photoelectron spectrum and 

compare it with our results obtained before in [1] and [2]. 

Our paper is organised as follows: After an introduction, in the 

second section we present some details of our model and derive the 

equation for atomic operators. In the third part our results are 

presented and discussed. Instead of presenting rather complicated 

formula (some details of the calculations leading to that formula can 

be found in the appendix) we have restricted ourselves to the two 

interesting physical limits: weak and strong fluctuations. 

References 

[1] W. Leoński, R. Tanaś and S. Kielich 1987 J. Opt. Soc. Am. B4 

72. 

[2] V. Cao Long, M. Trippenbach 1986 Z. Phys. B 63 267. 


V. Vật lý tính toán, mô phỏng và mô hình hóa. 

96. Inferring Amino Acid Interactions in Proteins using Maximum 

Entropy Approach 

Trinh Xuan Hoang 


The principle of maximum entropy is a powerful approach for 

statistical inference which is maximally non-committal to missing 

information. We review current methods for deducing knowledgebased 

potentials in proteins and present a novel technique, based on 

the principle of maximum entropy, for deriving the solvation energy 

parameters of amino acids from the knowledge of the solvent 

accessible areas in experimentally determined native state 

structures. 


97. Some Theoretical Issues of Wireless High Power Transmissions 

and a Mathematical Model of the Wireless Solar Power 

Transmission Problem from an Orbit in the Space to the Earth’s 

Surface. 

Dao Khac An 

Institute of Materials Science, VAST, 18 Hoang Quoc Viet, Cau Giay, 

Hanoi Viet nam 

The application of radio for telecommunications that has 

tremendous results throughout the 20th century, where the signals 

containing structural information with the nano-micro watt ranging 

power are wirelessly transmitted between stations. In 1900 Nicola 

Tesla, an inventor and scientist proposed the use of radio waves to 

transmit power instead of using high voltage power lines. Since then 

the theoretical and practical results of WPT have not been improved 

so much. Recently due to a lack of energy supply for the mankind, 

one has intensively concentrated to develop and solve the issues of 

wireless power transmission (WPT) for energy charging to the 

electrical equipments, and also to find sustainable new sources of 

clean energy. This presentation outlines briefly some issues and 

challenges of WPT such as some theoretical and methodological 


85 

86 

Tp. Hồ Chí Minh, 02-06/8/2010 

issues of WPT by near field, by far field, then the presentation will 

focus on some our research results of building mathematical model 

of wireless solar power transmission problem from an space orbit to 

the Earth’s surface using high power microwave beam. The 

mathematical formulas of Maxwell equation system and formula of 

high energy flux for WPT with abnormal features of transmission 

environment and some main influences factors of space and earth’s 

atmosphere on the WPT are presented. The challenges and 

orientation developments are also offered and discussed. 

(computional physics) 


98. Atomic Mechanism of Homogeneous Melting of bcc Fe at Limit of 

Superheating 

Tran Phuoc Duy and Vo Van Hoang 

Department of Applied Physics, Faculty of Applied Science, Institute 

of Technology of HochiMinh City , 268 Ly Thuong Kiet Street, 

District 10, HochiMinh City-Vietnam 

Atomic mechanism of homogeneous melting of the bulk bodycentered 

cubic (bcc) Fe has been studied via monitoring spatiotempmiệng 

arrangement of liquid-like atoms during heating 

process. Calculations were performed by molecular dynamics 

simulation. Liquid-like atoms were detected by the Lindemann 

critrerion of melting. We found that liquid-like atoms occur 

randomly in crystalline matrix at temperature far below the melting 

point due to local instability of the crystal lattice. Number of liquidlike 

atoms increases with increasing temperature and they have a 

tendency to form clusters and melting occurs when percolated 

liquid-like cluster is formed in the crystalline model. Occurrence of 

melting is also accompanied by the sudden changes in various static 

and thermodynamic quantities. However, total melting can be 

reached at the point far above the melting one. We found three 

characteristic temperatures of the homogeneous melting of bcc Fe. 


99. Computer Simulation of Microscopic Bubbles in Amorphous 

alloy Co 81.5 B 18.5 


87 

88 

Pham Huu Kien, Pham Khac Hung, and Vu Van Hung 

Department of Computational Physics, Hanoi University of 

Technology. Department of Physics, Hanoi University of Education 

Simulation of the diffusion mechanism via microscopic bubbles in 

amorphous materials is carried out using the statistical relaxation 

models Co 81.5 B 18.5 containing 2×10 5 atoms. The present work is 

focused on the role of these bubbles for self-diffusion in amorphous 

solids. It was found that the numbers of the vacancy bubbles (VB) 

in amorphous Co 81.5 B 18.5 vary from 1.4×10 -3 to 4×10 -3 per atom 

depending on the relaxation degree. The simulation shows the 

collective character of the atomic movement upon diffusion atoms 

moving. Due to the large size in comparison with B atom, the jump 

of a Co diffuses atom leads to a significant local rearrangement of 

the atoms located near the VB. Meanwhile, B diffuses like the 

movement of an interstitial impurity through the boron-VB. 

Diffusion coefficients have been calculated via the vacancy bubbles 

and they are consistent with experimental data. The effect of the 

relaxation is also investigated and interpreted as a result of vacancybubble 

annihilation during thermal annealing. 

Keywords: Bubbles; Amorphous alloys; Vacancy bubbles; 

Diffusion mechanism; Statistical relaxation. 


100. Computational Design of Mn 4 Molecules with Strong 

Intramolecular Exchange Coupling 

Nguyen Anh Tuan (1), Tran Thi Thuy Nu (1), Nguyen Van 

Thanh (1), Vu Van Khai (1,2), Shin-ichi Katayama (3), Nguyen 

Huy Sinh (1), Dam Hieu Chi (1,3) 

1 Faculty of Physics, Hanoi University of Science, 334 Nguyen Trai, 

Thanh Xuan, Hanoi, Vietnam 

2 National Univesity of Civil Engineering, 55 Giai Phong, Hai Ba 

Trung, Hanoi, Vietnam 

3 School of Materials Science, Japan Advanced Institute of Science 

and Technology, 1-1, Asahidai, Nomi, Ishikawa, 923-1292 Japan 

Tel.: 01234 686969, Email: tuanna@hus.edu.vn; tuanna@vnu.edu.vn 

Single-molecule magnets (SMMs) are high-spin molecules that can 

function as magnets below their blocking temperature (T B ). They 

Tp. Hồ Chí Minh, 02-06/8/2010

are being extensively studied due to their potential technological 

applications to molecular spintronics. However, currently 

synthesized SMMs have low T B , on the order of several degrees 

Kenvil. A way to develop SMMs is enhancing their intramolecular 

exchange coupling to well separate the ground spin state from the 

excited states. Mn 4+ Mn 3+ 3 SMMs having the general chemical 

formula [Mn 4+ Mn 3+ 3(µ 3 -L 2− ) 3 (µ 3 -X − )(O 2 CR) − 3(L1,L2) − 3] (L = O; X, 

R, L1 and L2 = various) have been studied by first-principles 

calculations. 

It was shown in our previous paper [1] the basic mechanism of 

AFM Mn 4+ -Mn 3+ coupling (J AB ) is determined by delocalization of 

3d electrons from the d z 2 orbitals at the Mn 3+ sites to the t 2g orbitals 

at the Mn 4+ site through the p orbitals at the µ 3 -L 2− (L = O) ions 

which results in the π-like hybridization states among these orbitals 

just below the Fermi level. This result allows us to predict that J AB 

can be structurally controlled, and will be strongest with the Mn 3+ - 

L-Mn 4+ angle α ≈ 90 o , while synthesized Mn 4+ Mn 3+ 3 molecules 

have α ≈ 95 o . 

In this study, to design new Mn 4+ Mn 3+ 3 SMMs having much more 

stable ferrimagnetic state, one approach is suggested. That is 

designing Mn 4+ Mn 3+ 3 molecules having α ≈ 90 o by rational 

variations in ligands. Based on this idea, we succeeded in designing 

new Mn 4+ Mn 3+ 3 molecules having J AB of about 3.5 times stronger 

than that of the synthesized Mn 4+ Mn 3+ 3 molecules. Our calculated 

results demonstrated that by using nitrogen-based ligands (NR’, R’ 

= a radical) instead of oxygen to form the exchange pathways 

between Mn ions, we can design new Mn 4+ Mn 3+ 3 molecules having 

J AB of about 3.5 times stronger than that of the synthesized 

Mn 4+ Mn 3+ 3 molecules. Our calculated results confirmed that J AB 

tends to strongest with α ≈ 90 o . Also our calculated results 

demonstrated that J AB tends to stronger with decrease of interatomic 

distance between the Mn 4+ and Mn 3+ ions (d AB ). Based on these 

magnetostructural correlations, the strong J AB space, 88 o ≤ α ≤ 92 o 

and d AB ≤ 2.850 Å, was established. Mn 4+ Mn 3+ 3 molecules in this 

space have J AB at least two times stronger than that of the 

synthesized Mn 4+ Mn 3+ 3 molecules. 

In conclusion, our calculated results demonstrated the advantage of 

using N-based ligands to control exchange pathways between Mn 

ions in Mn 4 molecules. These results can be applied not only to the 

specific system studied in this paper but also to other SMM systems. 

We hope the results would give some hints for synthesizing not only 

new superior Mn 4+ Mn 3+ 3 SMMs, but also other SMM systems 



89 

90 

Tp. Hồ Chí Minh, 02-06/8/2010 

101. Study on Lattice and Electronic Structure at the Surface of 

BaTiO 3 Thin Films by DFT Method 

Nguyen Thuy Trang, Nguyen Van Chinh, Bach Thanh 

Cong, and Nguyen Hoang Linh 


The low dimension systems of ferroelectric compounds are suitable 

for ferroelectric memory applications. Hence, the development of 

practical ferroelectric memory is in close connection with lowdimension 

physics of ferroelectric materials. In this paper, we 

introduce our ab initio calculations on thin films (quasi-two 

dimension systems Q2D) of the most typical ferroelectric 

compound BaTiO 3 basing on the application of density functional 

theory (DFT) to the Q2D system. The results showed that the 

convergences of the models were obtained for the thickness of the 

vacuum slabs as large as ten times of the atomic slabs within the 

total energy error ~ 0,01 eV. The BaO-terminated film exhibited 

smaller surface relaxation than the TiO 2 -terminated film. This can 

be explained by the stability of octahedral coordination TiO 6 . The 

lattice reconstructions lead to the electronic redistribution at the 

surface layers which give rise to the difference of the ferroelectricity 

between the two types of thin films and between the bulk and thin 

film materials. 


102. Structural Properties of Simulated Liquids and Amorphous 

GaAs, GaAs 2 , Ga 2 As 

Tran Thi Thu Hanh and Vo Van Hoang 

Department of Applied physics, Institute of Technology National 

University of Hochiminh City, 268 Ly Thuong Kiet Str., Distr. 10, 

Hochiminh City, Vietnam 

The structural properties of liquids and amorphous gallium 

arsenides have been studied using the molecular dynamics (MD) 

method. Simulations were done in the basic cube under periodic 

boundary conditions containing 3000 ions for GaAs, GaAs 2 , Ga 2 As 

models. The microstructure of systems has been analyzed through 


91 

92 

partial radial distribution functions (PRDFs), coordination number 

distributions, bond-angle distributions and interatomic distances. 

The evolution of structure upon cooling from the melt of Ga-As was 

observed and discussed. We found that calculated data agree well 

with the experimental ones and with those obtained previously in 

other simulation works. Moreover, temperature dependence of these 

distributions was obtained. 


103. Properties of Magnetic Nano-Particle Systems: A Monte Carlo 

Study 

Tran Nguyen Lan and Tran Hoang Hai 

HoChiMinh City Institute of Physics, VAST, 1 Mac Dinh Chi, Quan 1, 

Tp. HCM 

Monte Carlo method is used to study magnetic nano-particle 

system. We consider samples in two cases, the dilute sample and the 

dense sample. The anisotropy of each particle is assumed as 

uniaxial and has the random orientation. First, we extract the energy 

barrier to show the role of the poly-dispersity and the concentration. 

We consider influence of sample conditions on the coercive field 

and the blocking temperature. We found that the poly-dispersity 

play demagnetized role at both the low- and high-temperature, 

while the concentration deduce the decrease of the coercive field at 

the low-temperature and the increase of the blocking temperature. 

We use the temperature dependence of the coercive field to show 

the transition temperature, which separates the collective states at 

low- and high-temperature, arising due to the inter-particle 

interaction. The field dependence of the blocking temperature also 

found, the curvature changes from bell-like shape to plateau-like 

shape along with the increase of the concentration of samples. The 

invalidities of the classical expressions also were discussed 


104. Efficient 3D Poisson Solvers Based on post-BICGSTAB 

Algorithms: BICGSTAB (L), Enhanced BICGSTAB (L) 

Dinh Nhu Thao and Tran Thien Lan 

Tp. Hồ Chí Minh, 02-06/8/2010

College of Education, Hue University, 34 Le Loi Street, Hue City, 

Vietnam 

We built efficient 3D Poisson solvers based on post-BICGSTAB 

algorithms: BICGSTAB (L), enhanced BICGSTAB (L). 

Calculations are performed on Windows computers. It is showed 

that these solvers work very well in uniform grids. Convergent 

characteristics are improved very significantly and memory size is 

minimized. Consequently, the solvers are hundred times faster than 

solvers based on LU decomposition, Gauss’s elimination, Jacobi 

and Gauss-Seidel iteration algorithms. 


105. 3D Monte Carlo Simulation of GaAs p-i-n Diodes Taking into 

Account the Near Coulomb Interaction between Electrons and Holes 

Dinh Nhu Thao and Tran Thien Lan 


Vietnam 

This paper presents 3D simulation of carrier dynamics in GaAs p-in 

diodes taking into account the near Coulomb interaction between 

electrons and holes. The device simulation is carried out with 

various electric fields of 70, 100 and 130 kV/cm. The simulation 

results show that the interaction gives a correction of 10^6 V/m, 

equal to 1/10 the total electric field in the devices. The results also 

show that the velocity overshoot and the velocities obtained are 

nearly the same in both cases: with and without the near Coulomb 

interaction. This indicates that the near Coulomb interaction has no 

important role in carrier dynamics and it can be ignored in usual 

calculations. 


106. 3D Monte Carlo Simulation of Carrier Dynamics and THz 

Radiation from GaAs p-i-n Diodes 

Dinh Nhu Thao and Le Hoai Linh 


Vietnam 

In this paper we present 3D simulation of carrier dynamics and THz 

radiation from GaAs p-i-n diodes. We built a 3D device simulator 

93 


94 

with a Poisson solver based on BiCGSTAB algorithm. The results 

are consistent with 1D simulation ones. They confirm effect of 1D 

model in considering p-i-n diodes. They also show that THz 

radiation are really from LO phonons but from TO phonons, and the 

obvious coupling of light from carrier acceleration and LO phonons. 


107. Density Functional Based Study on Zinc Oxide Nanoparticles 

Vu Ngoc Tuoc and Nguyen Viet Minh 

Hanoi University of Science and Technology 

We have performed the Density Functional Tight Binding (DFTB) 

study on the structural properties of Zinc Oxide Nanoparticles (NP), 

focusing on the effects induced by the surfaces and quantum size 

effect. Effects of surface relaxation and surface stress which is 

absent in atomistic model are taken carefully into account. The 

studying Nanoparticle's size range up to 2.5nm. We illustrated the 

structural properties changes by decreasing NP sizes while the 

typical length of surface relaxation (~1 nm) remain unchanged and 

comparable with the particle size. The NP electronic properties, i.e. 

Density of State (DOS), charge transfer in hetero-bond also showed 

the deviation from bulk material value. 


108. Computer Simulation of Diffusion in Disordered Systems with 

many Particles 

P.K.Hung and T.V.Mung 

Department of Computational Physics, Hanoi University of 

Technology, 1 Dai Co Viet, Hanoi 

Understanding the microscopic mechanism of diffusion in 

amorphous materials remains a challenge in physics and material 

science. Previous simulations of diffusion of particle alone in 

disordered system show two specific features which are common 

for the dynamic in amorphous materials, however, the presence of 

large number of impurity has not been considered yet. In the present 

paper we shows a new simulation technique enabling to consider 

the diffusion of many impurities in disordered system. The 

Tp. Hồ Chí Minh, 02-06/8/2010 

simulation in linear chain consisting of several thousand sites has 

been conducted. The concentration of impurities varies in the range 

from 0 to 0.2. Two-level sates are applied for site and transition 

energies. The simulation result indicates a significant influence of 

the impurity concentration for systems where the disorder degree is 

strong. This result could explain qualitatively the concentration 

effect which is experimentally observed for diffusion of light atoms 

in amorphous alloys. 


109. Structure and Dynamics of Gold-Silicon Alloy by Molecular 

Dynamics Simulation 

T. L. Thuy. Nguyen (1), Noel Jakse (1) and Alain Pasturel 

(1,2) 

1. Laboratoire Sciences et Ingénierie, Matériaux et Procédés, UMR 

CNRS-INPG-UJF 5266, PHELMA-Grenoble-INP, BP 75, 38402 

Saint Martin d'Hères Cedex, France. 

2. Laboratoire de Physique et Modélisation des Milieux Condensés, 

UMR-CNRS 5493, Maison des Magistères, BP 166 CNRS, 38042 

Grenoble-Cedex09, France. 

A series of molecular dynamics simulations for the liquid, 

supercooled states of Au-Si alloy at the eutectic composition are 

presented. The interactions are described via a modified embeddedatom 

model (MEAM) for which several parameter sets exist.. The 

structural properties, namely, the pair-correlation functions, 

coordination numbers and the abundance of bonded pairs from the 

common neighbor analysis, and the dynamic properties through the 

self-diffusion coefficients are calculated and the results are 

compared to ab initio molecular dynamics data. An analysis of the 

various parameterizations is provided and improvements are 

proposed. 



95 

110. Accelerated MD Programm using CUDA Technology 

Nguyen Thu Nhan, Nguyen Thi Thanh Ha, and Pham Khac 

Hung 


Noi 

Molecular dynamic (MD) simulation is proven to be an important 

tool to study the structure as well as the physical properties at 

atomic level in material science. However, it requires a huge 

computing time and hence limits the ability to treat a large scale 

simulation. In this paper we present a solution to speed up the MD 

simulation using CUDA technology (Compute Unified Device 

Architecture). We used the GeForce GTS 250 card with Version 

2.30. The simulation is implemented for Lennard-Jones systems 

with periodic boundary conditions which consist of 1024, 2048, 

96 

Tp. Hồ Chí Minh, 02-06/8/2010

4096 and 8192 atoms. The calculation shows that the computing 

time depends on the size of system and could be decreased to 35 

times. This result indicates a posibility of constructing a large MD 

model up to with 105 atoms on the PC. 


111. Study of Size Effect and Thermal Characteristics of 

Nanoparticles using Computer Simulation 

Nguyen Thi Thao, Le Thi Phuong, and Pham Khac Hung 


Noi 

We present a result of molecular dynamic simulation of 

nanoparticle with spherical and cubical shape. Three models with 

size of 1000, 2000 and 3000 atoms have been constructed using the 

Lennard-Jones potentials. We focus on the size dependence of 

melting temperature as well as the local structure of nanoparticle 

under heating and cooling. The simulation result shows that the 

considered quantities are weakly dependent on the shape of 

nanoparticle, meanwhile the size effect exhibits clearly on the 

melting temperature and local microstructure. The simulation has 

been also conducted for nanoparticles Pt, Ag and Au which found a 

wide application in material industry. The size effect and thermal 

characteristics of those nanoparticles also are presented and 

discussed here. 


VI. Vật lý các vật liệu mềm và các lĩnh vực khác. 

112. Evolution of Protein-Protein Interaction Networks in 

Duplication-Divergence Model 

Bui Phuong Thuy (1) and Trinh Xuan Hoang (2) 

(1) Nam Dinh University of Technology Education, Phu Nghia, Loc 

Ha, Nam Dinh, Vietnam; (2) Institute of Physics, Vietnamese 

Academy of Science and Technology, 10 Dao Tan, Ba Dinh, Ha Noi, 

Vietnam 

Protein interacts with one another resulting in complex 

functionalities of living organisms. Like many other real-world 

networks, networks of protein-protein interactions possess certain 

degree of orderness such as the scale-free property. The latter means 

that the probability P to find a protein that interacts with k other 

proteins follows a power law, P(k) ~ k^{-\gamma}. Protein 

interaction networks (PINs) have been studied by using stochastic 

graph generating models. The duplication-divergence model is a 

model based on the evolutional properties of gene duplication and 

divergence. This simple model successfully shows how evolution 

can create scale-free networks. In this work, we show that the model 

can be improved by introducing some modifications to the 

divergence step and the initial conditions of the network growth. 

The model is well fitted to the latest experimental data on the PIN of 

single-celled yeast Saccharomyces cerevisiae. 



97 

113. On the Information Problem of DNA in the Denaturation 

Process 

Vy Thi Ha My, Vu Thu Huong, Chu Thuy Anh, 

To Thi Thao, Ngo Van Thanh, and Nguyen Ai Viet Institute 

of Physics, Vietnam Academy of Science and Technology, 10 


The information problem of DNA in the denaturation process was 

studied by the relationship between entropy and information. Using 

the previous PB’s (Peyrard and Bishop) numerical results obtained 

from their microscopic arharmonic model of DNA, we propose a 

new effective simple model to caculate DNA information. A shape 

98 

Tp. Hồ Chí Minh, 02-06/8/2010 

change of information at the denaturation phase transition point was 

found and discussed. 


114. The Simple Approximate Formula of the Curve of Rate 

Constant "k" for Medium Temperature Range in the Photosynthetic 

Reaction of Bacterial. 

V.T.H Yen, T.T.T Thuy, T.T Thao, N.V Thanh, and N.A 

Viet 



Photosynthesis converts light energy into chemical free energy - the 

most important process of life on the Earth was investigated. Using 

classic theory and quantum - mechanical aspects, the rate constant 

“k” for electron transfer is studied. For practical use, in the low and 

high temperature limits the values of k in literatures are 

approximated by two straight lines, while in medium case there is 

alike curve. In this report, a simple approximate formula of the 

curve of rate constant “k” is proposed for medium temperature 

range. The comparison has shown the quite good agreement 

between our calculated results from that simple formula and the 

experimental data in medium temperature range for both fast and 

slow phases. 



(Thành phố Hồ Chí Minh, 02 – 06/08/2010) 

DANH SÁCH ĐĂNG KÝ ĐẠI BIỂU 

TT Họ và tên Email Cơ quan 

1 Đào Khắc An andk@ims.vast.ac.vn VKHVL, HN 

2 Võ Xuân Ân voxuanan@hui.edu.vn ĐHCN, HCM 

3 Chu Thùy Anh ctanh@iop.vast.ac.vn VVL, HN 

4 Lê Hoàng Anh anhlh-ksclc@mail.hut.edu.vn ĐHBK, HN 

5 Nguyễn Phương Duy Anh nguyenphuongduyanh@yahoo.co 

m 

ĐHTD Một 

6 Phan Đức Anh pdanh@iop.vast.ac.vn VVL, HN 

7 Vũ Xuân Bách h5n1_1986@yahoo.com ĐHKHTN, HN 

8 Nguyễn Huy Bằng bangnguyen@vinhuni.edu.vn ĐH Vinh 

9 Trần Thoại Duy Bảo chthien@vast-hcm.ac.vn VVL, HCM 

10 Nguyễn Quang Báu nguyenquangbau@yahoo.com ĐHKHTN, HN 

11 Chu Văn Biên chuvanbiendhhd@yahoo.com ĐHHĐ, TH 

12 Nguyễn Dương Bộ nguyenduongbo@gmail.com ĐHSP, HNII 

13 Chia-Chu Chen chiachu@phys.ncku.edu.tw 

National Cheng- 

Kung Uni. 

14 Đỗ Đình Chiểu ĐH Pari 

15 Vũ Xuân Chung vuchung82@gmail.com ĐHKHTN, HN 

16 Nguyễn Chính Cương cuongnc@hnue.edu.vn ĐHSP, HN 

17 Nguyễn Như Đạt nndat@iop.vast.ac.vn VVL, HN 

18 Trần Quốc Đạt quocdat1900@yahoo.com ĐH TNguyên 

19 Nguyễn Đắc Diện nddien1980@yahoo.com ĐHBK, HN 

20 Lê Đình dinhle52@gmail.com ĐHSP, Huế 

21 Ngô Thị Thu Dinh ngothudinh@gmail.com ĐHKHTN, HN 

22 Lê Văn Đoài levandoai81@ymail.com ĐH Vinh 

23 Phùng Văn Đồng pvdong@iop.vast.ac.vn VVL, HN 

24 Nguyễn Hữu Dư huudu85@gmail.com 

TTGDTX, Cao 

Lãnh 

25 Đào Vọng Đức dvduc@iop.vast.ac.vn VVL, HN 


99 

100 

Tp. Hồ Chí Minh, 02-06/8/2010

26 Đinh Lưu Minh Đức dinhducct2@gmail.com 

THPT Châu 

Thành 2 

27 Trương Minh Đức tyduc@yahoo.com ĐHSP, Huế 

28 Đoàn Trí Dũng dtdung@gmail.com VVL, HCM 

29 Hồ Trung Dũng htdung8@yahoo.com VVL, HCM 

30 Ngũ Văn Dũng dungnv@fujikuravn.com 

Fujikura Fiber 

Optics Vietnam 

31 Nguyễn Tiến Dũng tiendungunivinh@gmail.com ĐH Vinh 

32 Trần Nguyễn Dũng tndung@iop.vast.ac.vn VVL, HN 

33 Trần Phước Duy tranpduy87@yahoo.com ĐHBK, HCM 

34 Trương Minh Duy truongminhduy91@yahoo.com ĐHKHTN, HCM 

35 Nguyễn Bích Hà nbha@iop.vast.ac.vn VKHVL, HN 

36 Nguyễn Hồng Hà ns@iop.vast.ac.vn VVL, HN 

37 Nguyễn Thị Thanh Hà thanhha12386@yahoo.com ĐHKHTN, HN 

38 Nguyễn Thu Hà thuhanhiep@yahoo.com HVKT MM 

39 Tô Bá Hạ tbhna2008@gmail.com HVKT QS 

40 Đặng Thanh Hải dthai@nxbgd.vn NXB GD VN 

41 Lê Thanh Hải lethanhhaidhxd@gmail.com ĐHXD HN 

42 Nguyễn Minh Hải hailyhue@yahoo.com.vn 

THPT Thanh 

Bình 

43 Nguyễn Thanh Hải hai@mail.hut.edu.vn ĐHBK, HN 

44 Trần Thị Hải tranhait@gmail.com ĐHKHTN, HN 

45 Nguyễn Suân Hãn vn_physics@yahoo.com ĐHKHTN, HN 

46 Phạm Thị Kim Hằng kimhang_tg@yahoo.com.vn VVL, HN 

47 Lê Thị Ngọc Hạnh ltnhanh@gmail.com THPT Trần Phú 

48 Trần Thị Thu Hạnh thuhanhsp@gmail.com ĐHBK, HCM 

49 Trần Minh Hiến tranminhhien@gmail.com VVL, HCM 

50 Trần Minh Hiền chthien@vast-hcm.ac.vn VVL, HCM 

51 Hồ Khắc Hiếu hieudh@gmail.com ĐHXD HN 

52 Nguyễn Văn Hiệu nvhieu@iop.vast.ac.vn VKHVL, HN 

53 Trần Minh Hiếu tranminhhieu00@yahoo.com ĐHBK, HN 

54 Nguyễn Văn Hoa nvhoa62@yahoo.com ĐHSP, HCM 

55 Lê Viết Hòa hoalv@hnue.edu.vn ĐHSP, HN 

56 Nguyễn Văn Hoá nguyenvanhoahd@yahoo.com ĐHHĐ, TH 

57 Phù Chí Hòa phchihoa@gmail.com ĐH Đà Lạt 

58 Nguyễn Quốc Hoàn nguyenquochoan@hotmail.com ĐHBK, HN 

59 Lê Văn Hoàng hoanglv@hcmup.edu.vn ĐHSP HCM 

60 Nguyễn Lê Hoàng chrono341989@gmail.com ĐHKHTN, HCM 

61 Trịnh Xuân Hoàng hoang@iop.vast.ac.vn VVL, HN 

62 Nguyễn Quang Học hocnq@hnue.edu.vn ĐHSP, HN 

63 Đỗ Xuân Hội dxhoi@hcmiu.edu.vn ĐHQG HCM 

64 Đào Thị Hồng dthong@iop.vast.ac.vn VVL, HN 

65 Lê Đình Hồng ledinhhong2003@yahoo.com ĐHSP, HN 

66 Nguyễn Trung Hồng hongk45@yahoo.com ĐHBK, HN 

67 Phan Thị Thanh Hồng thanhhongdhsp_th@yahoo.com ĐHSP, HNII 

68 Nguyễn Văn Hợp hopnvdhsp@yahoo.com ĐHSP, HN 

69 Lê Thọ Huệ lthue@iop.vast.ac.vn VVL, HN 

70 Đỗ Mạnh Hùng quochungvllt@gmail.com 

THPT Chuyên 

VP 

71 Hà Thanh Hùng hthung@grad.iop.vast.ac.vn ĐHSP, HNII 

72 Hoàng Văn Hưng hung.dn2121@gmail.com ĐHSP HCM 

73 Nguyễn Bá Hưng hungnb80@yahoo.com.vn HVQY 

74 Vũ Văn Hùng bangvu57@yahoo.com ĐHSP, HN 

75 Lê Thị Thanh Hương vatlydhhp@gmail.com ĐHHP 

76 Hồ Xuân Huy hoxuanhuy69@gmail.com ĐHAG 

77 Võ Phước Huy vophuochuydt@gmail.com ĐHBL 

78 Đỗ Khoa Thúy Kha dkhoathuykha@gmail.com.vn ĐH Huế 

79 Nguyễn Quốc Khánh quockhanh@gmail.com ĐHKHTN, HCM 

80 Phan Hồng Khiêm phanhongkhiem@gmail.com ĐHKHTN, HCM 

81 Đào Tiến Khoa khoa@vaec.gov.vn VKHKTHN, HN 

82 Hoàng Hồng Khuê hoanghongkue@yahoo.com ĐH Vinh 

83 Bùi Văn Khuể buivankhuedhhp@gmail.com ĐH Hải Phòng 


101 

102 

Tp. Hồ Chí Minh, 02-06/8/2010 

84 Phạm Hữu Kiên huukienpham@yahoo.com ĐHBK, HN 

85 Trương Thúy Kiều thuy_kieu912@yahoo.com VVL, HCM 

86 Võ Thành Lâm vothanhlam2003@yahoo.com ĐH SG 

87 Nguyễn Quỳnh Lan nquynhlan@hnue.edu.vn ĐHSP, HN 

88 Nguyễn Trí Lân ntlan@iop.vast.ac.vn VVL, HN 

89 Trần Nguyên Lân trannguyenlan@gmail.com VVL, HCM 

90 Trần Thiện Lân pro090@gmail.com ĐHSP, Huế 

113 Võ Văn Ớn vovanon1963@gmail.com ĐHTD Một 

114 Phùng Đình Phong pdphongsp2@gmail.com ĐHSP, HNII 

115 Trần Công Phong tcphong@moet.edu.vn ĐH Huế 

116 Nguyễn Văn Phú vphuvnu@yahoo.com ĐH Vinh 

117 Huỳnh Vĩnh Phúc hoangphuong2710@gmail.com ĐH Đồng Tháp 

118 Lê Thị Thu Phương thuphuonghueuni@gmail.com ĐHSP, Huế 

119 Lê Thu Phương nguyenquangbau@yahoo.com ĐHKHTN, HN 

91 Chu Văn Lanh lanh_kly@yahoo.com.vn ĐH Vinh 

92 Nguyễn Như Lê naspears13@gmail.com ĐH Huế 

120 Phạm Việt Phương pvphuong85@gmail.com 

ĐH 

Sungkyunkwan 

HQ 

93 Nguyễn Văn Liễn nvlien@iop.vast.ac.vn VVL, HN 

94 Nguyễn Thùy Linh victorkhtn@gmail.com ĐHKHTN, HN 

95 Phạm Quốc Lịnh quoclinh.78@gmail.com 

THPT DTNT Cà 

Mau 

96 Nguyễn Thị Hà Loan hloansp2@gmail.com ĐHSP, HNII 

97 Hoàng Ngọc Long hnlong@iop.vast.ac.vn VVL, HN 

98 Nguyễn Văn Long nvlongialai@yahoo.com.vn CĐSP Gia Lai 

99 Nguyễn Duy Lý nguyenduyly@vanlanguni.edu.vn ĐH Văn Lang 

100 Bruce H J McKellar bhjmckellar@me.com 

Univ of 

Melbourne, 

Australia 

101 Nguyễn Viết Minh minhnv@mail.hut.edu.vn ĐHBK, HN 

102 Trịnh Văn Mừng mungtv76@gmail.com ĐHBK, HN 

103 Vy Thị Hà My hamysphn@gmail.com ĐHSP, HN 

104 Đỗ Vân Nam vannam.do@gmail.com ĐHBK, HN 

105 Nguyễn Đình Nam dinhnamt2@yahoo.com ĐHKHTN, HN 

106 Nguyễn Ngọc Thành Nam nntnam@gmail.com ĐHKHTN, HCM 

107 Phạm Thị Thanh Nga nga_ptt@wru.edu.vn ĐHTL, HN 

108 Nguyễn Văn Nghĩa nghiangv@yahoo.com ĐHTL, HN 

109 Bạch Như Nguyện nhunguyen73@gmail.com MIC 

110 Nguyễn Thu Nhàn thunhan-iep@mail.hut.edu.vn ĐHBK, HN 

111 Nguyễn Vũ Nhân nvnhan@excite.com HVPK - KQ 

112 Phan Thị An Nhàn ptanhan50@student.ctu.edu.vn ĐH Cần Thơ 

121 Đoàn Nhật Quang dnquang@iop.vast.ac.vn VVL, HN 

122 Nguyễn Hồng Quang nhquang@iop.vast.ac.vn VVL, HN 

123 Nguyễn Chánh Quí ncqui55@gmail.com ĐH Cần Thơ 

124 Hồ Quang Quý hoquangquy@gmail.com HVKT QS 

125 Piotr Rozmej vanlongcao@yahoo.com 

126 Bounyavong sengthong sengthong@grad.iop.vast.ac.vn VVL, HN 

127 Nguyễn Huy Sinh sinhnh@hus.edu.vn ĐHKHTN, HN 

128 Vetpany SIVONGXAY vetpany_nuol@yahoo.com VVL, HN 

129 Đặng Văn Soa dvsoa@assoc.iop.vast.ac.vn ĐHSP, HN 

130 Nguyễn Hồng Sơn atvsld@gmail.com ĐHCĐ, HN 

131 Nguyễn Thành Sơn thanhsonsply@yahoo.com ĐHKT, HCM 

132 Phạm Ngọc Sơn pnson.nri@gmail.com VNC Đà Lạt 

133 Trần Ngọc Sương suongtnvl@gmail.com THPT Tam Bình 

134 Võ Văn Tài nqkhanh54@yahoo.com ĐHKHTN, HCM 

135 Nguyễn Thị Thanh Tâm thanhtamvldhqn@gmail.com ĐH QNam 

136 Phạm Đình Tám pdtamqs@gmail.com HVKT QS 

137 Trịnh Văn Thà trinhvanthasph@gmail.com 

THPT Tam 

Nông 

138 Hoàng Văn Thái hoangvanthai76@gmail.com THPT Việt Đức 

139 Vũ Kim Thái vukimthai@yahoo.com.vn ĐHKH KTCN 

140 Đỗ Đình Thanh ĐHSP, HN 


103 

104 

Tp. Hồ Chí Minh, 02-06/8/2010

141 Lưu Thị Kim Thanh luuthikim.thanh@yahoo.com ĐHSP, HNII 

142 Nguyễn Văn Thạnh nvthanh906@gmail.com ĐHKH Huế 

143 Thái Doãn Thanh zthanh76@yahoo.com ĐHCN TP, HCM 

144 Đinh Như Thảo dnthao@gmail.com ĐHSP, Huế 

145 Lê Phương Thảo ari7124@gmail.com ĐHKHTN, HN 

146 Nguyễn Huy Thảo abcthao@yahoo.com ĐHSP, HNII 

147 Nguyễn Thị Thảo thaont-iep@mail.hut.edu.vn ĐHBK, HN 

148 Phạm Hương Thảo hthao82@gmail.com ĐHKHTN, HN 

149 Cao Huy Thiện chthien@vast-hcm.ac.vn VVL, HCM 

150 Nguyễn Văn Thịnh nguyenvanthinhh@gmail.com ĐHBL 

151 Nguyễn Viễn Thọ thonv-iep@mail.hut.edu.vn ĐHBK, HN 

152 Nguyễn Hà Thu nvnhan@excite.com HVPK - KQ 

153 Nguyễn Khắc Thuận nvnhan@excite.com HVPK - KQ 

154 Nguyễn Văn Thuận thuanvatli@yahoo.com ĐHSP, HN 

155 Nguyễn Thị Thương thuongnt-iep@mail.hut.edu.vn ĐHBK, HN 

156 Bùi Phương Thúy thuy_24784@yahoo.com 

ĐHSP KT Nam 

Định 

157 Nguyễn Thị Thúy ntthuy@iop.vast.ac.vn VVL, HN 

169 Đinh Văn Tuân dinhvantuan1984@gmail.com ĐHKHTN, HCM 

170 Hoàng Anh Tuấn hatuan@iop.vast.ac.vn VVL, HN 

171 Lê Tuấn letuan_2002@yahoo.com ĐHBK, HN 

172 Nguyễn Anh Tuấn tuanna@itims.edu.vn ĐHBK, HN 

173 Nguyễn Anh Tuấn tuanna@hus.edu.vn ĐHKHTN, HN 

174 Trương Văn Tuấn nqkhanh@phys.hcmuns.edu.vn Trường SQQS 

175 Lương Văn Tùng dhspdtvantung@yahoo.com ĐH Đồng Tháp 

176 Nguyễn Huyền Tụng nghtung@mail.hut.edu.vn ĐHBK, HN 

177 Nguyễn Ngọc Ty tynn@hcmup.edu.vn ĐHSP HCM 

178 Cao Long Vân nguyen@ifpan.edu.pl 

179 Võ Văn Viên wvienk16@yahoo.com ĐH TNguyên 

180 Nguyễn Ái Việt vieta@iop.vast.ac.vn VVL, HN 

181 Đinh Quang Vinh vinhdq@hnue.edu.vn ĐHSP, HN 

182 Nguyễn Hoàng Vũ vu.phys.hcmuns@gmail.com ĐHKHTN, HCM 

183 Lê Thị Hải Yến lthyen1611@yahoo.com.vn ĐHKHTN, HN 

184 Vũ Thị Hải Yến vhyen@iop.vast.ac.vn VVL, HN 

185 Vũ Thị Hải Yến VVL, HN 

158 Nguyễn Thị Lệ Thủy thuyyuht@gmail.com Labo SIMAP 

159 Trần Thanh Thúy ttthuy@iop.vast.ac.vn VVL, HN 

160 Hoàng Văn Tích hoangtich48@yahoo.com.vn ĐHSP, HN 

161 Lê Văn Tiến tienvatlikhtn029@yahoo.com 


VCH&THUD, 

HCM 

162 Tống Sỹ Tiến thanlong81@yahoo.com ĐHKHTN, HN 

163 Nguyễn Công Toản toannc@vnu.edu.vn ĐHKHTN, HN 

164 Nguyễn Thùy Trang trangnguyenphys@gmail.com ĐHKHTN, HN 

165 Triệu Quỳnh Trang mecuaminhnghia@yahoo.com.vn 

CĐSP, Nam 

Định 

166 Nguyễn Hoàng Minh Trí minhtridhdt@gmail.com ĐH Đồng Tháp 

167 Nguyễn Bảo Trung trunghhpt@yahoo.com ĐHKHTN, HN 

168 Nguyễn Quý Trường quytruong1991@gmail.com ĐHKH 

105 

DANH SÁCH TÊN VIẾT TẮT 

Tên CQ viết tắt 

CĐSP Gia Lai 

CĐSP, Nam Định 

ĐH Cần Thơ 

ĐH Đà Lạt 

ĐH Đồng Tháp 

ĐH Hải Phòng 

ĐH Huế 

ĐH QNam 

ĐH SG 

ĐH Sungkyunkwan HQ 

106 

Tên CQ đầy đủ 

Cao Đẳng Sư phạm Gia Lai 

Cao đẳng Sư phạm Nam Định 

Đại học Cần Thơ 

Đại học Đà Lạt 

Đại học Đồng Tháp 

Đại học Hải Phòng 

Đại học Huế 

Đại học Quảng Nam 

Đại học Sài Gòn 

Trường Đại học Sungkyunkwan Hàn Quốc 

Tp. Hồ Chí Minh, 02-06/8/2010 

ĐH TNguyên 

Đại học Tây Nguyên 

HVPK - KQ 

Học viện Phòng không – Không quân 

ĐH Văn Lang 

Đại học Văn Lang 

HVQY 

Học viện Quân y 

ĐH Vinh 

Đại học Vinh 

ĐHAG 

Đại học An Giang 

ĐHBK, HCM 

Đại học Bách khoa Hồ Chí Minh 

ĐHBK, HN 

Đại học Bách khoa Hà Nội 

ĐHBL 

Đại học Bạc Liêu 

ĐHCĐ, HN 

Đại học Công Đoàn Hà Nội 

ĐHCN TP, HCM 

Đại học Công nghiệp thực phẩm Hồ Chí Minh 

ĐHCN, HCM 

Đại học Công nghiệp Thành phố Hồ Chí Minh 

ĐHHĐ, TH 

Đại học Hồng Đức Thanh Hóa 

ĐHHP 

Đại học Hải Phòng 

ĐHKH 

Đại học Khoa học 

ĐHKH Huế 

Đại học Khoa học Huế 

ĐHKH KTCN 

Đại học Khoa học Kỹ thuật Công nghiệp 

ĐHKHTN, HCM 

Đại học Khoa học Tự nhiên Hồ Chí Minh 

ĐHKHTN, HN 

Đại học Khoa học Tự nhiên Hà Nội 

ĐHKT, HCM 

Đại học Kiến trúc Tp. Hồ Chí Minh 

ĐHQG HCM 

Đại học Quốc gia Hồ Chí Minh 

ĐHSP HCM 

Đại học Sư phạm Hồ Chí Minh 

ĐHSP KT Nam Định 

Đại học Sư phạm kỹ thuật Nam Định 

ĐHSP, HN 

Đại học Sư phạm Hà Nội 

ĐHSP, HNII Đại học Sư phạm Hà Nội 2 

ĐHSP, Huế 

Đại học Sư phạm Huế 

Labo SIMAP 

Labo SIMAP 

MIC 

Văn phòng đại diện của MIC 

National Cheng-Kung Uni. National Cheng-Kung University 

NXB GD VN 

Nhà Xuất bản giáo dục Việt Nam 

THPT Châu Thành 2 Trường THPT Châu Thành 2, Đồng Tháp 

THPT Chuyên VP 

Trường THPT Chuyên Vĩnh Phúc 

THPT DTNT Cà Mau Trường THPT dân tộc nội trú Cà Mau 

THPT Tam Bình 

Trường THPT Tam Bình 

THPT Tam Nông 

Trường THPT Tam Nông, Đồng Tháp 

THPT Thanh Bình Trường THPT Thanh Bình 1 

THPT Trần Phú 

Trường THPT Trần Phú 

THPT Việt Đức 

Trường THPT Việt Đức 

Trường SQQS 

Trường sĩ quan quân sự 

TTGDTX, Cao Lãnh 

Trung tâm Giáo dục thường xuyên H. Cao Lãnh 

VCH&THUD, HCM 

Viện cơ học và tin học ứng dụng Thành phố Hồ Chí Minh 

VKHKTHN, HN 

Viện Khoa học và Kỹ thuật Hạt nhân, Hà Nội 

VKHVL, HN 

Viện Khoa học Vật liệu, Hà Nội 

VNC Đà Lạt 

Viện nghiên cứu hạt nhân Đà Lạt 

VVL, HCM 

Viện Vật lý, Tp. Hồ Chí Minh 

VVL, HN 

Viện Vật lý, Hà Nội 

FPA 

Faculty of Physics and Astronomy 

ĐHTD Một 

ĐHTL, HN 

ĐHXD HN 

Đại học Thủ Dầu Một 

Đại học Thủy Lợi Hà Nội 

Đại học Xây dựng Hà Nội 

Fujikura Fiber Optics Vietnam Fujikura Fiber Optics Vietnam 

HVKT MM 

HVKT QS 

Học Viện kỹ thuật mật mã 

Học viện Kỹ thuật quân sự 


107 

108 

Tp. Hồ Chí Minh, 02-06/8/2010

Chỉ dẫn tác giả 

Alain Pasturel.......................... 22, 101 

Bach Thanh Cong..................... 13, 96 

Bruce McKellar ........................... 6, 29 

Bui Phuong Thuy .................... 25, 103 

Bui Sy Khiem, ............................. 7, 72 

Bui Dinh Thuan ......................... 11, 88 

Bui Van Khue............................ 15, 61 

Cao Ho Thanh Xuan ................. 12, 72 

Cao Huy Thien.......................... 14, 42 

Cao Long Van11, 20, 21, 82, 86, 88, 89 

Chia-Chu Chen ......................... 21, 75 

Chu Thuy Anh............. 21, 22, 73, 103 

Chu Van Lanh............................. 7, 72 

D. N. Nghia ............................... 21, 85 

D. T. Huong .............................. 24, 31 

Dam Hieu Chi ................................. 94 

Dang Thanh Hai........................ 19, 63 

Dang Van Soa ............................ 8, 37 

Dao Khac An....................... 24, 25, 91 

Dao Tien Khoa.......................... 25, 28 

Dao Vong Duc ................ 8, 16, 35, 37 

Dinh Nhu Thao.......... 8, 12, 21, 98, 99 

Dinh Quang Vinh .......... 10, 19, 66, 67 

Dinh Van Tuan.......................... 25, 46 

Dinh Xuan Khoa........................ 76, 77 

Do Manh Hung............................ 9, 51 

Do Phuong Lien ........................ 18, 59 

Do Van Nam ................... 9, 25, 43, 47 

Doan Hoai Son ......................... 21, 82 

Doan Nhat Quang..................... 15, 46 

Doan Quoc Khoa .......... 11, 20, 86, 89 

Doan Tri Dung .................... 14, 23, 42 

Duong Dai Phuong ................... 17, 40 

Duong Xuan Long..................... 14, 45 

Ha Huy Bang .............................. 8, 40 

Ha Thanh Hung ........................ 16, 36 

Ho Khac Hieu............................ 15, 61 

Ho Quang Quy................ 7, 11, 72, 84 

Ho Sy Ta..................................... 9, 47 

Ho Trung Dung ............... 7, 21, 70, 79 

Hoang Anh Tuan....................... 19, 57 

Hoang Hong Khue .................... 20, 76 

Hoang Ngoc Long8, 16, 24, 31, 36, 37 

Hoang Van Hung ...................... 11, 81 

Hoang Van Thai........................ 10, 66 

Hui-Min Lin ............................... 21, 75 

Huynh Thi Trang Dai ................ 16, 35 

Huynh Vinh Phuc...................... 15, 44 

Huynh Xuan Lam...................... 17, 39 

J. Gueder.................................. 23, 43 

K. Masuda-Jindo....................... 20, 64 

L. C. Tuong............................... 14, 31 

L. T. Hue................................... 16, 36 

L. V. Nam.................................. 21, 85 

Le Canh Trung.............. 12, 20, 77, 78 

Le Dinh ......................... 15, 18, 44, 48 

Le Dinh Hong............................ 10, 64 

Le Hai My Ngan........................ 11, 81 

Le Hoai Linh ............................. 12, 99 

Le Hoang Anh............................. 9, 47 

Le Phuong Thao ......................... 7, 40 

Le Quoc Anh............................. 18, 48 

Le Thanh Hai ............................ 18, 50 

Le Thi Binh ............................... 19, 63 

Le Thi Cam Tu.......................... 11, 81 

Le Thi Hai Yen.......................... 17, 41 

Le Thi Mai Thanh...................... 20, 64 

Le Thi Phuong ........................ 22, 102 

Le Thi Thu Phuong10, 15, 18, 26, 44, 45, 56 

Le Tien Hai ............................... 19, 66 

Le Tuan .................................... 18, 58 

Le Van Doai.............................. 20, 76 

Le Van Hoang11, 12, 20, 72, 79, 81, 86 

Le Viet Hoa..................... 8, 24, 30, 38 

Luong Khanh Toan ................... 17, 35 

Luong Van Tung ........... 18, 19, 52, 56 

Luu Thi Kim Thanh ............. 17, 35, 40 

Mai Thi Linh Chi........................ 17, 35 

N. H. Cong................................ 21, 85 

N. H.Thao ................................... 8, 37 

N. T. Thuy................................. 24, 31 

N.N. Tuan ................................... 9, 58 

N.V. Minh.................................... 9, 58 

Ngo Thi Thanh Ha .................... 18, 56 

Ngo Thi Thu Dinh ..................... 23, 34 

Ngo Thi Thuy Trang.................. 11, 85 


109 

110 

Tp. Hồ Chí Minh, 02-06/8/2010 

Ngo Van Thanh10, 21, 22, 49, 73, 103, 104 

Nguyen Ai Viet10, 21, 22, 49, 73, 103, 104 

Nguyen Anh Tuan......... 16, 18, 59, 94 

Nguyen Bao Trung.................... 10, 67 

Nguyen Bich Ha.......................... 6, 69 

Nguyen Chanh Qui ................... 11, 82 

Nguyen Chinh Cuong ................. 8, 38 

Nguyen Cong Toan................... 10, 67 

Nguyen Dinh Dung 7, 8, 17, 33, 34, 40 

Nguyen Dinh Nam ...................... 9, 51 

Nguyen Dinh Tuan.................... 17, 40 

Nguyen Duong Bo .................... 14, 45 

Nguyen Hoang Linh.................. 13, 96 

Nguyen Hoang Minh Tri............ 20, 76 

Nguyen Hong Quang ................ 14, 45 

Nguyen Huy Bang... 71, 74, 76, 78, 82 

Nguyen Huy Sinh...................... 16, 94 

Nguyen Huyen Tung..... 15, 18, 46, 50 

Nguyen Minh Hai ...................... 21, 82 

Nguyen Ngoc Ty ........... 11, 12, 81, 86 

Nguyen Nhu Dat14, 18, 23, 42, 45, 50 

Nguyen Nhu Le........................... 8, 36 

Nguyen Phuong Duy Anh ......... 12, 72 

Nguyen Quang Bau ........ 9, 51, 55, 56 

Nguyen Quang Hoc10, 15, 19, 62, 66, 67 

Nguyen Quoc Hoan .................. 14, 33 

Nguyen Quoc Khanh19, 25, 46, 57, 60 

Nguyen Quynh Lan................... 14, 31 

Nguyen Suan Han .................... 17, 41 

Nguyen Thanh Hai.................... 11, 63 

Nguyen Thanh Son................... 20, 79 

Nguyen Thanh Tien .................. 46, 58 

Nguyen Thanh Vinh.................. 12, 74 

Nguyen Thi Ha Loan................... 8, 37 

Nguyen Thi Ha Trang ................. 7, 72 

Nguyen Thi Nguyet ................... 12, 81 

Nguyen Thi Thanh Ha............. 13, 101 

Nguyen Thi Thanh Nhan........... 18, 56 

Nguyen Thi Thanh Tam ............ 11, 84 

Nguyen Thi Thao .................... 22, 102 

Nguyen Thi Thu Huong............... 8, 40 

Nguyen Thi Thuong .................... 9, 58 

Nguyen Thu Ha......................... 10, 64 

Nguyen Thu Nhan ...... 13, 19, 65, 101 

Nguyen Thuy Linh .................... 26, 45 

Nguyen Thuy Trang.................. 13, 96 

Nguyen Tien Dung7, 12, 20, 71, 74, 77, 78 

Nguyen Toan Thang................. 10, 54 

Nguyen Tri Lan ........................... 9, 53 

Nguyen Trung Hong ................. 18, 50 

Nguyen Tuan Anh........... 8, 24, 30, 38 

Nguyen Van Chinh ................... 13, 96 

Nguyen Van Hieu ....................... 6, 69 

Nguyen Van Hoa ...................... 12, 72 

Nguyen Van Hop ...................... 20, 80 

Nguyen Van Hung ........ 10, 15, 61, 67 

Nguyen Van Long........... 8, 24, 30, 38 

Nguyen Van Nghia ..................... 9, 55 

Nguyen Van Phu ...................... 21, 82 

Nguyen Van Thanh................... 16, 94 

Nguyen Van Thinh........ 12, 20, 77, 78 

Nguyen Van Thuan................... 24, 30 

Nguyen Vien Tho...................... 14, 33 

Nguyen Viet Minh ........... 9, 12, 53, 99 

Nguyen Vinh Quang ........... 11, 21, 82 

Nguyen Vu Nhan ...................... 26, 45 

Nobuchika Okada ..................... 24, 29 

Noel Jakse.............................. 22, 101 

Pham Dinh Tam............ 15, 19, 62, 66 

Pham Duy Tan.............. 15, 19, 62, 66 

Pham Hong Phong ............. 11, 21, 82 

Pham Huu Kien ........................ 25, 93 

Pham Khac Hung13, 19, 22, 25, 65, 93, 100, 

101, 102 

Pham Ngoc Son ....................... 17, 39 

Pham Quang Hung..................... 8, 36 

Pham Quoc Linh....................... 20, 77 

Pham Thi Thanh Nga ............... 10, 54 

Pham Van Trong ........................ 7, 71 

Phan Duc Anh .............. 10, 22, 49, 73 

Phan Hoang Chuong .... 13, 20, 75, 76 

Phan Thi An Nhan .................... 21, 82 

Phan Thi Thanh Hong .............. 15, 61 

Phu Chi Hoa ............................. 17, 39 

Phung Dinh Phong ................... 15, 62 

Phung Van Dong ...... 8, 24, 28, 34, 37 

Piotr Rozmej ............................. 14, 32 

S. W. Kock ................................ 23, 43 

Shin-ichi Katayama................... 16, 94 

T. D. Thanh............................... 21, 85 

T. L. Thuy. Nguyen ................. 22, 101 

T. Meier..................................... 23, 43 

T.D. Doan ................................. 23, 43 

T.T.T Thuy .............................. 22, 104 

T.T.T. Van................................. 10, 49 

Nguyen Van Hoa ...................... 11, 84 

To Ba Ha................................... 14, 33 

To Thi Thao .. 10, 21, 22, 49, 103, 104 

Tong Sy Tien ............................ 10, 67 

Tran Cong Phong10, 18, 44, 48, 52, 56 

Tran Dinh Hien.......................... 10, 56 

Tran Hoang Hai ........................ 22, 97 

Tran Huu Phat ................ 8, 24, 30, 38 

Tran Manh Cuong..................... 12, 74 

Tran Minh Hien ......................... 21, 79 

Tran Minh Hieu ......................... 24, 29 

Tran Nguyen Dung ..................... 9, 49 

Tran Nguyen Lan ...................... 22, 97 

Tran Phuoc Duy........................ 16, 92 

Tran Quoc Dat .......................... 10, 62 

Tran Thai Hoa..................... 17, 35, 40 

Tran Thi Hai .............................. 18, 50 

Tran Thi Thu Hanh.................... 22, 96 

Tran Thi Thu Huong.................... 9, 55 

Tran Thi Thuy Nu...................... 16, 94 

Tran Thien Lan ..................... 8, 21, 98 

Tran Thoai Duy Bao ................. 14, 42 

Trieu Quynh Trang ..................... 8, 40 

Trinh Van Mung ...................... 22, 100 

Trinh Xuan Hoang ...... 14, 16, 45, 103 

Truong Minh Duc .......... 11, 12, 81, 85 

Truong Van Tuan...................... 19, 60 

U. Hoefer .................................. 23, 43 

V. V. Vien.................................. 16, 36 

V.T Hoa .................................... 10, 49 

Vo Phuoc Huy........................... 20, 76 

Vo Thanh Lam .......................... 19, 52 

Vo Van Hoang .............. 16, 22, 92, 96 

Vo Van On ................................ 17, 39 

Vo Van Tai................................ 19, 57 

Vu Kim Thai .............................. 19, 57 

Vu Ngoc Sau .... 11, 12, 21, 74, 82, 84 

Vu Ngoc Tuoc................. 9, 12, 58, 99 

Vu Thi Hai Yen ........... 16, 22, 36, 104 

Vu Thu Huong ........................ 21, 103 

Vu Van Hung10, 15, 19, 20, 25, 61, 63, 64, 

66, 93 

Vu Van Khai.............................. 16, 94 

Vu Xuan Bach........................... 17, 33 

Vu Xuan Chung .......................... 8, 34 

Vuong Huu Tan ........................ 17, 39 

Vy Thi Ha My .......................... 21, 103 

Wieslaw Leoński................. 11, 86, 88 


111 

112 

Tp. Hồ Chí Minh, 02-06/8/2010

GHI CHÉP 

GHI CHÉP 


113 

114 

Tp. Hồ Chí Minh, 02-06/8/2010 

GHI CHÉP 


115

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