Weakly interacting Bose gases below the critical temperature
Other Condensed Matter
2015-03-13 v2
Abstract
We consider a homogeneous non-ideal Bose gas at nonzero temperature in equilibrium below the critical temperature in the framework of finite temperature field theory. An algorithm is described in which a manageable subset of diagrams can be considered which, coupled with a self--consistent condition related to the minimization of the free energy, can be used to obtain physically reasonable results.
Cite
@article{arxiv.0709.1293,
title = {Weakly interacting Bose gases below the critical temperature},
author = {E. Kovalchuk and R. Kobes},
journal= {arXiv preprint arXiv:0709.1293},
year = {2015}
}
Comments
15 pages, 9 figures, uses revtex4-1. Added references and clarification of the nature and validity of the assumptions used