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Phys. Rev. A 63, 013607 (2000) [14 pages]

Reversible and irreversible evolution of a condensed bosonic gas

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R. Walser, J. Cooper, and M. Holland
JILA, National Institute of Standards and Technology, and University of Colorado, Boulder, Colorado 80309-0440

Received 17 April 2000; published 12 December 2000

We have formulated a kinetic theory for a condensed atomic gas in a trap, i.e., a generalized Gross-Pitaevskii equation, as well as a quantum-Boltzmann equation for the normal and anomalous fluctuations [R. Walser et al., Phys. Rev. A 59, 3878 (1999)]. In this paper, the theory is applied to the case of an isotropic configuration and we present numerical and analytical results for the reversible real-time propagation, as well as irreversible evolution towards equilibrium.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevA.63.013607
DOI:
10.1103/PhysRevA.63.013607
PACS:
03.75.Fi, 05.30.Jp, 67.40.Db, 05.70.Ln