Theory of the normal-superfluid interface in population-imbalanced Fermi gases

Stefan K. Baur, Sourish Basu, Theja N. De Silva, Erich J. Mueller

Research output: Contribution to journalArticle

17 Scopus citations

Abstract

We present a series of theoretical studies of the boundary between a superfluid and a normal region in a partially polarized gas of strongly interacting fermions. We present mean-field estimates of the surface energy in this boundary as a function of temperature and scattering length. We discuss the structure of the domain wall, and use a previously introduced phenomonological model to study its influence on experimental observables. Our microscopic mean-field calculations are not consistent with the magnitude of the surface tension found from our phenomonological modeling of data from the Rice University experiments. We conclude that one must search for novel mechanisms to explain the experiments.

Original languageEnglish (US)
Article number063628
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume79
Issue number6
DOIs
StatePublished - Jun 24 2009
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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