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arxiv: cond-mat/0610389 · v4 · submitted 2006-10-16 · ❄️ cond-mat.other

Ultracold Bose Gases in 1D Disorder: From Lifshits Glass to Bose-Einstein Condensate

Pierre Lugan (LCFIO) , David Cl\'ement (LCFIO) , Philippe Bouyer (LCFIO) , Alain Aspect (LCFIO) , Maciej Lewenstein (ICFO) , Laurent Sanchez-Palencia (LCFIO) This is my paper
classification ❄️ cond-mat.other
keywords boseinteractionsbose-einsteincondensatedisorderlifshitsultracolddelocalized
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We study an ultracold Bose gas in the presence of 1D disorder for repulsive inter-atomic interactions varying from zero to the Thomas-Fermi regime. We show that for weak interactions the Bose gas populates a finite number of localized single-particle Lifshits states, while for strong interactions a delocalized disordered Bose-Einstein condensate is formed. We discuss the schematic quantum-state diagram and derive the equations of state for various regimes.

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