Background field method at finite temperature and density

Abstract

In this letter we make use of the Background Field Method (BFM) to compute the effective potential of an SU(2) gauge field theory, in the presence of chemical potential and temperature. The main idea is to consider the chemical potential as the background field. The gauge fixing condition required by the BFM turns out to be exactly the one we found in a previous article in a different context.

6 pages, no figures

References in corpus (5)

• Application of the Background-Field Method to the electroweak Standard Model
• Kaon Condensation and Goldstone's Theorem
• Spontaneous Symmetry Breaking with Abnormal Number of Nambu-Goldstone Bosons and Kaon Condensate
• Algebraic Aspects of the Background Field Method
• Weinberg-Salam model at finite temperature and density

Cited by in corpus (3)

• Gauge copies in the Landau-DeWitt gauge: a background invariant restriction
• Confinement in a Higgs Model on $R^3\times S^1$
• Gauge dependence ambiguity and chemical potential in thermal U(1) theory