Stability criteria for breached pair superfluidity

May, 2004
5 pages
Published in:
  • Phys.Rev.Lett. 94 (2005) 017001
e-Print:
Report number:
  • MIT-CTP-3491

Citations per year

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Abstract:
We present simple, concrete, two-fermion models that exhibit thermodynamically stable isotropic translationally-invariant gapless superfluid states (breached pair superfluidity). The mass ratio between the components and the momentum structure of the interaction are crucial for determining the stability of such states: Idealized, momentum-independent (``contact'') interactions are insufficient.
  • 71.27.+a
  • 74.20.Mn
  • 64.10.+h
  • 74.25.Dw
  • superfluidity
  • fermion systems