Inhibition of Transport of a Bose-Einstein Condensate in a Random Potential
Jocelyn Retter (LCFIO), Andres F. Varon (LCFIO), David Cl\'ement, (LCFIO), Mathilde Hugbart (LCFIO), Philippe Bouyer (LCFIO), Laurent, Sanchez-Palencia (LCFIO), Dmitry Gangardt (LPTMS), Gora V. Shlyapnikov, (LPTMS), Alain Aspect (LCFIO)
TL;DR
This paper investigates how a Bose-Einstein condensate's transport is suppressed in a weak random potential, supported by experiments and numerical simulations, revealing disorder-induced trapping effects.
Contribution
It demonstrates the suppression of BEC transport in a weak random potential and proposes a disorder-induced trapping mechanism supported by numerical modeling.
Findings
Transport suppression observed experimentally
Numerical solutions match experimental results
Disorder-induced trapping scenario proposed
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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Taxonomy
TopicsCold Atom Physics and Bose-Einstein Condensates · Quantum, superfluid, helium dynamics · Strong Light-Matter Interactions