Journal
JOURNAL OF LOW TEMPERATURE PHYSICS
Volume 124, Issue 3-4, Pages 431-442Publisher
SPRINGER/PLENUM PUBLISHERS
DOI: 10.1023/A:1017519118408
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We present a generalized Gross-Pitaerskii equation that describes the dissipative dynamics of a trapped partially Bose-condensed gas. It takes the of a complex nonlinear Schrodinger equation with noise. We consider an approximation to this Langevin field equation that preserves the correct equilibrium,for both the condensed and the noncondensed parts of the gas. We then use this,this formalism to describe the reversible formation of a one- dimensional Bose condensate, and compare with recent experiments. In addition, we determine the frequencies anti the damping of collective modes in this ease.
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