Superfluidity in a model of massless fermions coupled to scalar bosons
Journal Article
·
· Physical Review, D
- Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)
- RIKEN-BNL Research Center, Brookhaven National Laboratory, Upton, New York 11973 (United States)
We study superfluidity in a model of massless fermions coupled to a massive scalar field through a Yukawa interaction. Gap equations for a condensate with total spin J=0 are solved in the mean-field approximation. For the Yukawa interaction, the gaps for right- and left-handed fermions are equal in magnitude and opposite in sign, so that condensation occurs in the J{sup P}=0{sup +} channel. At finite scalar mass, there are two different gaps for fermions of a given chirality, corresponding to condensation of particle pairs or of antiparticle pairs. These gaps become degenerate in the limit of infinite scalar mass. {copyright} {ital 1999} {ital The American Physical Society}
- OSTI ID:
- 686921
- Journal Information:
- Physical Review, D, Vol. 60, Issue 9; Other Information: PBD: Nov 1999
- Country of Publication:
- United States
- Language:
- English
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