Phase-fluctuating 3D condensates in elongated traps
Statistical Mechanics
2009-11-07 v2
Abstract
We find that in very elongated 3D trapped Bose gases, even at temperatures far below the BEC transition temperature Tc, the equilibrium state will be a 3D condensate with fluctuating phase (quasicondensate). At sufficiently low temperatures the phase fluctuations are suppressed and the quasicondensate turns into a true condensate. The presence of the phase fluctuations allows for extending thermometry of Bose-condensed gases well below those established in current experiments.
Cite
@article{arxiv.cond-mat/0104373,
title = {Phase-fluctuating 3D condensates in elongated traps},
author = {D. S. Petrov and G. V. Shlyapnikov and J. T. M. Walraven},
journal= {arXiv preprint arXiv:cond-mat/0104373},
year = {2009}
}
Comments
5 pages REVTeX, 3 figures, misprints corrected