Thermodynamical Properties of a Class of Models With Nonabelian Internal Symmetries at Finite Temperature and Baryon Number

Miller, David E.; Redlich, Krzysztof

doi:10.1103/PhysRevD.37.3716

Thermodynamical Properties of a Class of Models With Nonabelian Internal Symmetries at Finite Temperature and Baryon Number

David E. Miller
(
- Bielefeld U. and
- Penn State U.
)
,
Krzysztof Redlich
(
- Bielefeld U. and
- Wroclaw U.
)

Jul, 1987

40 pages

Published in:

Phys.Rev.D 37 (1988) 3716

DOI:

10.1103/PhysRevD.37.3716

Report number:

BI-TP-87-07

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Abstract: (APS)

The thermodynamical properties of a particular class of gauge models with non-Abelian internal symmetries at finite temperature with exactly implemented baryon-number conservation are investigated. In this context we analyze a model for both SU(2)- and SU(3)-color symmetries in the canonical and grand canonical ensembles. For the case of the grand canonical ensemble we examine particular structure arising with a complex chemical potential. The phase structure of the SU(2)-spin model is studied in the mean-field approximation using the complex chemical potential. These results could possibly be useful for Monte Carlo computations in lattice gauge theory at finite temperature and finite baryon number.

GAUGE FIELD THEORY: SU(2)
GAUGE FIELD THEORY: SU(3)
GROUP THEORY: REPRESENTATION
BARYON NUMBER: CONSERVATION LAW
GAUGE FIELD THEORY: WILSON LOOP
APPROXIMATION: EFFECTIVE POTENTIAL
APPROXIMATION: MEAN FIELD
GAUGE FIELD THEORY: CRITICAL PHENOMENA
SYMMETRY: Z(2)
FIELD THEORY: FINITE TEMPERATURE

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