Renormalization Group Theory for the Imbalanced Fermi Gas
Statistical Mechanics
2009-11-13 v4 Superconductivity
Abstract
We formulate a wilsonian renormalization group theory for the imbalanced Fermi gas. The theory is able to recover quantitatively well-established results in both the weak-coupling and the strong-coupling (unitarity) limit. We determine for the latter case the line of second-order phase transitions of the imbalanced Fermi gas and in particular the location of the tricritical point. We obtain good agreement with the recent experiments of Y. Shin {\it et al}. [Nature {\bf 451}, 689 (2008)].
Cite
@article{arxiv.0711.2963,
title = {Renormalization Group Theory for the Imbalanced Fermi Gas},
author = {K. B. Gubbels and H. T. C. Stoof},
journal= {arXiv preprint arXiv:0711.2963},
year = {2009}
}
Comments
Replaced with published version