Bose-Einstein Condensates in Rotating Traps and Optical ... - BEC

128 Macroscopic Dynamics
m*/m
2.0
1.8
1.6
1.4
1.2
1.0
0 1 2 3 4 5
V opt (E r )
Figure 9.3: Effective mass extracted from the axial dipole mode frequency (open circles) and
from the axial quadrupole mode frequency (closed circles) using Eqs. (9.51,9.52) as a function
of lattice depth Vopt ≡ s in the experiment [75]. The continuous line represents the theoretical
curve (9.51), while dashed and dotted lines correspond to the values obtained in [143] by
numerically solving the GPE and evaluating the effective mass from the quadrupole and the
dipole mode frequencies. Figure taken from [75].
(Hz)
200
190
180
170
160
150
140
0 1 2 3 4 5 6
V opt (E r )
Figure 9.4: Frequency of the transverse breathing mode of the condensate measured in the
experiment [75] as a function of the optical lattice depth Vopt ≡ s. The dashed line corresponds
to the expected value 2ν⊥. Figure taken from [75].