Stability criteria for breached-pair superfluidity.
نویسندگان
چکیده
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.
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عنوان ژورنال:
- Physical review letters
دوره 94 1 شماره
صفحات -
تاریخ انتشار 2005