Damping in dilute Bose gases: a mean-field approach
Condensed Matter
2009-10-30 v1
Abstract
Damping in a dilute Bose gas is investigated using a mean-field approximation which describes the coupled oscillations of condensate and non-condensate atoms in the collisionless regime. Explicit results for both Landau and Beliaev damping rates are given for non-uniform gases. In the case of uniform systems we obtain results for the damping of phonons both at zero and finite temperature. The isothermal compressibility of a uniform gas is also discussed.
Cite
@article{arxiv.cond-mat/9709259,
title = {Damping in dilute Bose gases: a mean-field approach},
author = {S. Giorgini},
journal= {arXiv preprint arXiv:cond-mat/9709259},
year = {2009}
}
Comments
24 pages, 1 figure, RevTex, submitted to Phys. Rev. A