Phase structure of lattice SU(2) QCD with finite chemical potential
- 15 April 1988
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review D
- Vol. 37 (8) , 2300-2306
- https://doi.org/10.1103/physrevd.37.2300
Abstract
A ground state of lattice SU(2) QCD with Kogut-Susskind fermions at finite chemical potential is studied. Strong-coupling perturbation theory yields an effective Hamiltonian analogous to that of the Heisenberg antiferromagnetic model. By use of this analogy a phase transition restoring both the U(1) symmetry of the baryon number and the axial symmetry is predicted. This result is then confirmed by a nonperturbative calculation.Keywords
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