Pairing in low-density Fermi gases
Nuclear Theory
2011-07-18 v2
Abstract
We consider pairing in a dilute system of Fermions with a short-range interaction. While the theory is ill-defined for a contact interaction, the BCS equations can be solved in the leading order of low-energy effective field theory. The integrals are evaluated with the dimensional regularization technique, giving analytic formulas relating the pairing gap, the density, and the energy density to the two-particle scattering length.
Cite
@article{arxiv.nucl-th/9811077,
title = {Pairing in low-density Fermi gases},
author = {Thomas Papenbrock and George F. Bertsch},
journal= {arXiv preprint arXiv:nucl-th/9811077},
year = {2011}
}
Comments
12 pages, 2 EPS-figures, uses psfig.sty, eq.(9) corrected