RG flow of the Polyakov-loop potential - first status report

Journal Article · Tue Jun 14 00:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.1961053· OSTI ID:20722846

Braun, J; Gies, H; Pirner, H -J ^[1]

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1. Institute for Theoretical Physics, University of Heidelberg, 69120 Heidelberg (Germany)

We study SU(2) Yang-Mills theory at finite temperature in the framework of the functional renormalization group. We concentrate on the effective potential for the Polyakov loop which serves as an order parameter for confinement. In this first status report, we focus on the behaviour of the effective Polyakov-loop potential at high temperatures. In addition to the standard perturbative result, our findings provide information about the 'RG improved' backreactions of Polyakov-loop fluctuations on the potential. We demonstrate that these fluctuations establish the convexity of the effective potential.

• OSTI ID: 20722846
• Journal Information: AIP Conference Proceedings, Vol. 775, Issue 1; Conference: HLPR 2004: Joint meeting Heidelberg-Liege-Paris-Rostock on hadronic physics, Spa (Belgium), 16-18 Dec 2004; Other Information: DOI: 10.1063/1.1961053; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
36 MATERIALS SCIENCE
BAG MODEL
FLUCTUATIONS
ORDER PARAMETERS
POTENTIALS
QUANTUM FIELD THEORY
RENORMALIZATION
SU-2 GROUPS
YANG-MILLS THEORY