Renormalization Group Theory for the Imbalanced Fermi Gas
arXiv:0711.2963 · doi:10.1103/PhysRevLett.100.140407
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)].
Replaced with published version
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- Spin transport in a unitary Fermi gas close to the BCS transition
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- Towards a field-theory interpretation of bottom-up holography
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