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Exatas e Naturais INCT – Institutos Nacionais de Ciência e Tecnologia
INCT – Institutos Nacionais de Ciência e Tecnologia
Exatas e Naturais
Paulo Nussenzveig
Ruynet L. De Matos Filho
Stephen Patrick Walborn
Associated Institutions
LIQA-UFPE, GOM-UFAL, LTIQ-UFC, ENLIGHT-UFMG, GICQ-UFU, LOQ-
-UFRJ, LACAM-UFRJ, LAFRJ-UFRJ, GOIQ-UFRJ, GMCT-UFRJ, GOIQ-UFF,
GIQFC-UFF, GCQIQ-CBPF, GPIQRMN, LCQ, GIQ-UFABC, CC-Unicamp,
GOQ-Unicamp, GTDFMC-Unicamp, GTCQ-Unicamp, LIA-USP/SC, GIQT,
LMCAL-USP, GT-USP, GIQ-UEPG
Main researchers
Amir Ordacgi Caldeira, Luiz Davidovich, Alfredo Miguel Ozorio de Almeida,
Jean Pierre von der Weid, Mahir Saleh Hussein, Maria Carolina Nemes,
Nicim Zagury, Belita Koiller, Reginaldo Palazzo Júnior, Carlos Henrique
Monken, Marcus Aloizio Martinez de Aguiar, Nelson Velho de Castro Faria,
Raimundo Rocha dos Santos, Tito José Bonagamba, Kyoko Furuya, Luis
Gustavo Marcassa, Mauricio Porto Pato, Miled Hassan Youssef Moussa,
Paulo Henrique Souto Ribeiro, Salomon S. Mizrahi, Sebastião de Pádua,
Cláudio Lenz Cesar, Ginette Jalbert de Castro Faria, Ivan dos Santos Oliveira
Júnior, José Antonio Roversi, José Wellington Rocha Tabosa, Paulo
Alberto Nussenzveig, Raul Oscar Vallejos, Sandra Sampaio Vianna.
Main research topics
1. Criptografia quântica e comunicação quântica.
2. Interface átomo-luz, Memória Quântica e Repetidores Quânticos.
3. Computação quântica com RMN, átomos frios, condensados e ótica linear.
4. Produção e detecção de fótons emaranhados e fótons únicos.
5. Emaranhamento em variáveis contínuas e emaranhamento em sistemas
de d(>2) níveis
6. Computação quântica com matéria condensada
7. Correlações quânticas em sistemas atômicos de “átomos gêmeos”.
8. Eletrodinâmica quântica em cavidades.
9. Dinâmica e medidas de emaranhamento.
10. Teoria de Informação Quântica
these advances thanks to pre-existing infrastructure and equipment, especially
in the laboratories. At present, equipment which has been purchased
and imported as part of the Institute has just begun to arrive, and we are
confident that future advances will be even greater.
Main publications
A. S. Coelho et al. Science, 326, 823 (2009)
M. Mücke et al. Nature, 465, 755 (2010)
G. Rigolin et al. Phys. Rev. Lett. 104, 170406 (2010)
S. P. Walborn et al. Phys. Rev. Lett. 103, 160505 (2009)
B. C. dos Santos et al. Phys. Rev. Lett. 103, 230503 (2009)
R. M. Gomes et al. PNAS 106, 21517 (2009)
A. M. Souza et al. Quantum Information & Computation 10, 0653 (2010)
Souza et al. Optics Express 18, 9207 (2010)
Contacts
http://www.quantiki.org
E-mail: caldeira@ifi.unicamp.br
Experimento para a produção de átomos de Rydberg
Main research topics
Mapping of the electrical conductivity and of geoelectric anisotropy
direction as a function of lithospheric depth, along profiles normal to the
main structures of the Borborema Province.
Deep seismic refraction, structure of crust and lithospheric mantle.
Seismology, monitoring and research of local and regional seismic events
with seismographic networks, crustal structure using receiver function of
teleseismic events, crust and mantle tomography.
Density distribution to modeling crustal structure along deep seismic
refraction profiles.
Neotectonic deformation within the province, including seismogenic
faults, Cenozoic fault reactivation, deformation of Neogene deposits,
paleotensions, paleoseismicity.
Geological compartments and geotectonic evolution, geological mapping
of the Santa Quitéria arc and and Borborema transition to the São
Francisco craton.
Summary of achievements and perspectives
Deployment of ten profiles already carried out and of five more to be
done, with a total length of more than 5000 km, comprising magnetotelluric
soundings ca. 20-30 km apart, showing electrical resistivity of the
crust and upper mantle of the Borborema Province and adjacent areas,
as vertical images down to 200-250 km depth.
Broad band stations continue operating and seismic events were
recorded in several localities (Cascavel, Ceará; Caruaru, Pernambuco;
Tabuleiro Grande, Rio Grande do Norte). Main seismic activity is occurring
in NW Ceará (Sobral, Alcântaras, Meruoca, Granja, Santana do Acaraú,
Coreaú). Local seismographic networks were deployed in Santana do
Acaraú, Castanhão and Caruaru.
Stress tensors were determined/updated for the northern Borborema Province,
Potiguar basin, Pernambuco lineament and N São Francisco craton.
Deep seismic refraction data suggest that Moho descontinuity is an
irregular surface with different behavior in each tectonic domain. Crustal
thickness tends to increase from the Orós-Jaguaribe terrain (28.5 km)
towards the Santa Quitéria arc (c. 35 km) and southeastwards towards
the Borborema plateau, in agreement with inferences derived from
Bouguer anomalies. P wave velocities are relatively homogeneous, small
differences having been recorded between different tectonic domains.
The Conrad discontinuity is clearly recorded, indicating well defined
upper and lower crust. P velocities in the mantle range between 7.8 and
8.1 km/s, suggesting relative homogeneity, even within different tectonic
domains. Two additional profiles will be carried out in 2010-2011, one
N-S crossing the province up to the São Francisco craton, the other
crossing the northern part of the craton.
chronology of Quaternary liquefaction structures in gravels, northeastern
Brazil. Sedimentary Geology (in press)
Moura-Lima E.N., Sousa M.O.L., Bezerra F.H.R., Aquino M.R., Vieira M.M.,
Lima Filho F.P. Fonseca V.P., Amaral R.F. 2010. Sedimentação e deformação
tectônica neogênicas e quaternárias no centro da Bacia Potiguar.
Geologia USP: Série Científica, 10, 1, 15-28.
Contacts
Universidade de Brasília
Instituto de Geociências
Laboratório de Geocronologia
70910-900 Brasília, DF
E-mail: reinhardt@pq.cnpq.br;reinhardt@unb.br
Trabalho de campo na porção NW da Província Borborema
Field work in NW Borborema.
Summary of achievements and perspectives
Here we emphasize the principal experimental results obtained in four
of our laboratories: i) production of three-mode continuous variable
entanglement and study of its dynamics (USP), reported in SCIENCE; ii)
observation of genuine non-gaussian entanglement (UFRJ), published in
PNAS; iii) description of the relaxation of the electric quadrupole of nuclear
spin 3/2 as a quantum computational process (USP-SC/CBPF), reported
National Institute of Science and Technology for
Tectonics Studies – INCTET
in Quantum Information and Computation; and iv) optical implementation Management committee
of a controlled-not gate (UFF), published in Optics Express. Theoretical Reinhardt A. Fuck (Coordinator)
work/publications were realized in the areas of quantum computation Ícaro Vitorello (Vice-coordinator)
Main publications
with continuous variables, quantum algorithms, quantum cryptography, Marcelo Assumpção
Amaral W.S., Santos T.J.S, Wernick E. Occurrence and geochemistry
quantum computation with atoms, solid-state systems, Nuclear Magnetic Joaquim Mendes Ferreira
of metamafic rocks from the Forquilha Eclogite Zone, central Ceará
Resonance and photons, description and quantification of quantum entan- Elson Paiva Oliveira
(NE Brazil): Geodynamic implications. Geological Journal, 2010.
glement, the link between quantum entanglement and thermodynamics,
DOI:10.1002/gj.1224.
description of quantum systems in phase space and quantum information Associated Institutions
Chimpliganond C.N., Assumpção M., Von Huelsen M.G., França G.S. The
theory. One example of the theoretical work listed above is a proposal for UnB, INPE, ON, UFRN, UFC, UFBA, UNICAMP, UNIPAMPA
Intracratonic Caraíbas-Itacarambi earthquake of December 09, 2007 (4.9
quantum computation using quantum electrodynamics in doped silicon
mb). Tectonophysics, 480, 48-56, 2009.
(UFRJ). This study shows that the same solid-state system which is used Main researchers
Lopes A.E.V., Assumpção M., Nascimento A.F., Ferreira J.M., Menezes
in the confection of integrated circuits for conventional computers has great Ícaro Vitorello, Sergio L. Fontes, Marcelo B. Pádua, Mauricio S. Bologn,
E.A., Barbosa J.R. Intraplate earthquake swarm in Belo Jardim, NE Brazil:
potential for the realization of a quantum computer. In this regard, we are José Eduardo P. Soares, Jesus Berrocal, Reinhardt Fuck, Marcelo S.
Reactivation of a major Late Proterozoic shear zone (Pernambuco Linea-
still in a very preliminary stage, and various technical issues need to be Assumpção, Joaquim M. Ferreira, George S. França, David L. Castro,
ment). Geophysical Journal International, 180, 1303-1312, 2010.
overcome, however, this initial investigation points in the direction in which Roberta Vidotti, Monica Von Huelsen, Francisco Hilário R. Bezerra, Benja-
Moura-Lima E.N., Bezerra F.H.R., Lima Filho, F.P., Castro D.L., Sousa
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there exists the greatest chance of success. The Institute achieved all of mim B. Brito Neves, Elson P. Oliveira, Ticiano J. S. Santos
M.O.L., Fonseca V.P., Aquino M.R. 3-D geometry and luminescence
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