Trapped Bose-Einstein condensates at finite temperature: a two-gas model
Statistical Mechanics
2007-05-23 v1
Abstract
A simple picture describes the results of recent treatments of partially-condensed, dilute, trapped Bose gases at temperature T > 0. The condensate wavefunction is nearly identical to that of a T=0 condensate with the same number of condensate atoms, N_0. 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.
Cite
@article{arxiv.cond-mat/9712286,
title = {Trapped Bose-Einstein condensates at finite temperature: a two-gas model},
author = {R. J. Dodd and K. Burnett and Mark Edwards and Charles W. Clark},
journal= {arXiv preprint arXiv:cond-mat/9712286},
year = {2007}
}
Comments
10 pages, LaTeX, three .eps figures, jltp.sty (included). Acta Physica Polonica A (January 1997, in press)