Superfluidity in a model of massless fermions coupled to scalar bosons

Journal Article · Sun Oct 31 23:00:00 EST 1999 · Physical Review, D

DOI:https://doi.org/10.1103/PhysRevD.60.094013· OSTI ID:686921

Pisarski, R D ^[1]; Rischke, D H ^[2]

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1. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973 (United States)
2. 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, Journal Name: Physical Review, D Journal Issue: 9 Vol. 60; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
FERMIONS
MASSLESS PARTICLES
QUANTUM CHROMODYNAMICS
QUARK MATTER
SCALAR FIELDS
SUPERFLUIDITY
YUKAWA POTENTIAL