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Stability Criteria for Breached-Pair Superfluidity

Michael McNeil Forbes, Elena Gubankova, W. Vincent Liu, and Frank Wilczek
Phys. Rev. Lett. 94, 017001 – Published 5 January 2005
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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.

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  • Received 16 August 2004

DOI:https://doi.org/10.1103/PhysRevLett.94.017001

©2005 American Physical Society

Authors & Affiliations

Michael McNeil Forbes, Elena Gubankova, W. Vincent Liu, and Frank Wilczek

  • Center for Theoretical Physics, Department of Physics, MIT, Cambridge, Massachusetts 02139, USA

See Also

Odd Particle Out

Chelsea Wald
Phys. Rev. Focus 15, 1 (2005)

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Issue

Vol. 94, Iss. 1 — 14 January 2005

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