Decoherence of Bose-Einstein condensates in traps at finite temperature
Condensed Matter
2009-10-31 v2
Abstract
The phase diffusion of the order parameter of trapped Bose-Einstein condensates at temperatures large compared to the mean trap frequency is determined, which gives the fundamental limit of the line-width of an atom laser. In addition a prediction of the correlation time of the number fluctuations in the condensate is made and related to the phase diffusion via the fluctuation-dissipation relation.
Cite
@article{arxiv.cond-mat/9808336,
title = {Decoherence of Bose-Einstein condensates in traps at finite temperature},
author = {Robert Graham},
journal= {arXiv preprint arXiv:cond-mat/9808336},
year = {2009}
}
Comments
4 pages Revtex, revised version, to appear in Phys. Rev. Letters