BCS superfluidity in ultracold gases with unequal atomic populations
Soft Condensed Matter
2009-10-31 v1 Statistical Mechanics
Strongly Correlated Electrons
Superconductivity
Abstract
We consider the existence of a BCS superfluid phase in Li due to the pairing of two hyperfine states with unequal number of atoms. We show that the domain of existence for this phase will be increased to a very large extent in the vicinity of the threshold for collapse. This is due to the presence of a new phase with anisotropic order parameter. This phase is induced by the anisotropic part of the scattering, linked to the indirect interaction between atoms through density fluctuation exchange.
Keywords
Cite
@article{arxiv.cond-mat/0007191,
title = {BCS superfluidity in ultracold gases with unequal atomic populations},
author = {R. Combescot},
journal= {arXiv preprint arXiv:cond-mat/0007191},
year = {2009}
}
Comments
5 pages, revtex, 2 figures