Gapless surfaces in anisotropic superfluids

E. Gubankova, E. G. Mishchenko, F. Wilczek

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


We demonstrate when p-wave pairing occurs between species whose free Fermi surfaces are mismatched the gap generally vanishes over a two-dimensional surface. We present detailed calculations of condensation energy, superfluid density (Meissner mass) and specific heat for such states. We also consider stability against separation into mixed phases. According to several independent criteria that can be checked at weak coupling, the resulting "breached" state appears to be stable over a substantial range of parameters. The simple models we consider are homogeneous in position space, and break rotation symmetry spontaneously. They should be realizable in cold atom systems.

Original languageEnglish (US)
Article number184516
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number18
StatePublished - 2006
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


Dive into the research topics of 'Gapless surfaces in anisotropic superfluids'. Together they form a unique fingerprint.

Cite this