TY - GEN
T1 - Interacting Bose-Einstein condensates in random potentials
AU - Bouyer, P.
AU - Sanchez-Palencia, L.
AU - Clément, D.
AU - Lugan, P.
AU - Aspect, A.
PY - 2008/1/1
Y1 - 2008/1/1
N2 - We investigate the transport properties of an interacting Bose-Einstein condensate in a speckle random potential. At equilibrium in a trapping potential and for the considered small disorder, the condensate shows a Thomas-Fermi shape modified by the disorder. When the condensate is released from the trap, a strong suppression of the expansion is obtained as observed in recent experiments. For the parameters of the experiment, it is shown to result from the competition between the disorder, the interactions and the kinetic energy. A scenario for disorder-induced trapping is proposed and analyzed. Numerical calculations performed in the mean-field approximation agree with the analytical results derived on the basis of this scenario.
AB - We investigate the transport properties of an interacting Bose-Einstein condensate in a speckle random potential. At equilibrium in a trapping potential and for the considered small disorder, the condensate shows a Thomas-Fermi shape modified by the disorder. When the condensate is released from the trap, a strong suppression of the expansion is obtained as observed in recent experiments. For the parameters of the experiment, it is shown to result from the competition between the disorder, the interactions and the kinetic energy. A scenario for disorder-induced trapping is proposed and analyzed. Numerical calculations performed in the mean-field approximation agree with the analytical results derived on the basis of this scenario.
KW - Anderson Localisation
KW - Bose-Einstein Condensate
KW - Random Potential
U2 - 10.1142/9789812813206_0002
DO - 10.1142/9789812813206_0002
M3 - Conference contribution
AN - SCOPUS:84903733230
SN - 9812813195
SN - 9789812813190
T3 - Proceedings of the 18th International Conference on Laser Spectroscopy, ICOLS 2007
SP - 11
EP - 22
BT - Proceedings of the 18th International Conference on Laser Spectroscopy, ICOLS 2007
PB - World Scientific Publishing Co. Pte Ltd
T2 - 18th International Conference on Laser Spectroscopy, ICOLS 2007
Y2 - 24 June 2007 through 29 June 2007
ER -