Chiral symmetry in two-color QCD at finite temperature
- 21 July 2000
- journal article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 62 (4)
- https://doi.org/10.1103/physrevd.62.045012
Abstract
We study the chiral symmetry in two-color QCD with N massless flavors at finite temperature, using an effective theory. For the gauge group SU(2), the chiral symmetry is enlarged to SU(2N), which is then spontaneously broken to Sp(2N) at zero temperature. At finite temperature, and when the axial anomaly can be neglected, we find a first order phase transition occurring for two or more flavors. In the presence of instantons, the symmetry restoration unambiguously remains first order for three or more massless flavors. These results could be relevant for lattice studies of chiral symmetry at finite temperature and density.Comment: 10 pages, RevteKeywords
All Related Versions
This publication has 20 references indexed in Scilit:
- Critical behavior inNt=4staggered fermion thermodynamicsPhysical Review D, 2000
- Complex Langevin: A numerical method?Nuclear Physics A, 1998
- Equation of state for two flavor QCD atPhysical Review D, 1997
- Scaling of Chiral Order Parameter in Two-Flavor QCDPhysical Review Letters, 1997
- Finite temperature transitions in lattice QCD with Wilson quarks: Chiral transitions and the influence of the strange quarkPhysical Review D, 1996
- Complex zeros of the partition function for lattice QCDNuclear Physics B, 1992
- Lattice SU(N) OCD at finite temperature and density in the strong coupling limitPhysics Letters B, 1987
- The strong coupling limit of SU(2) QCD at finite baryon densityPhysics Letters B, 1986
- Superfluidity and superconductivity in relativistic fermion systemsPhysics Reports, 1984
- Remarks on the chiral phase transition in chromodynamicsPhysical Review D, 1984