arXiv:cond-mat/0509605 · Laser Spectroscopy
INHIBITION OF TRANSPORT OF A BOSE-EINSTEIN CONDENSATE IN A RANDOM POTENTIAL
J. A. Retter, A. F. Varón, David Clément, Mathilde Hugbart, Philippe Bouyer, Laurent Sanchez-Palencia, Dimitri M. Gangardt, Georgy V. Shlyapnikov, Alain Aspect
Abstract
We observe the suppression of the 1D transport of an interacting elongated Bose-Einstein condensate in a random potential with a standard deviation small compared to the typical energy per atom, dominated by the interaction energy. Numerical solutions of the Gross-Pitaevskii equation reproduce well our observations. We propose a scenario for disorder-induced trapping of the condensate in agreement with our observations.