paper

Bose-Einstein condensation in quasi2D trapped gases

arXiv:cond-mat/9909344 · doi:10.1103/PhysRevLett.84.2551

Abstract

We discuss BEC in (quasi)2D trapped gases and find that well below the transition temperature the equilibrium state is a true condensate, whereas at intermediate temperatures one has a quasicondensate (condensate with fluctuating phase). The mean-field interaction in a quasi2D gas is sensitive to the frequency of the (tight) confinement in the "frozen" direction, and one can switch the sign of the interaction by changing . Variation of can also reduce the rates of inelastic processes, which opens prospects for tunable BEC in trapped quasi2D gases.

4 revtex pages, 1 figure, text is revised, figure improved

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