Suppression of Transport of an Interacting Elongated Bose-Einstein Condensate in a Random Potential
David Clément, Andrès F. Varon, Mathilde Hugbart, Jocelyn Retter, 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.
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