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Trapped Bose-Einstein Condensates at Finite Temperature: A Two-Gas Model

Published

Author(s)

Karen G. Burnett, M Edwards, Charles W. Clark, R J. Dodd

Abstract

A simple picture describes the results of recent treatments of partially-condensed, dilute, trapped Bose gases at temperature T>O. The condensate wavefunction is nearly identical to that of a T=O condensate with the same number of condensate atoms, No. The cloud of non-condensed atoms is described by the statistical mechanics of an ideal Bose gas in the combined potentials of the magnetic trap and the cloud-condensate interaction. We provide a physical motivation for this result, show how it emerges in the Hartree-Fock-Bogoliubov-Popov approximation, and explore some of its implications for future experiments.
Citation
Acta Physica Polonica A
Volume
93
Issue
No. 1

Keywords

atom laser, Bose-Einstein condensation, laser cooling, superfluid

Citation

Burnett, K. , Edwards, M. , Clark, C. and Dodd, R. (1998), Trapped Bose-Einstein Condensates at Finite Temperature: A Two-Gas Model, Acta Physica Polonica A (Accessed July 24, 2024)

Issues

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Created December 31, 1997, Updated October 12, 2021