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Z_N-symmetry in gauge theories at finite temperatures

V. M. Belyaev
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Abstract

The role of Z_N symmetry in gauge theories at finite temperatures is discussed. This symmetry is studied in terms of A_0-effective potential. We consider two- and four-dimensional models where the question on physical interpretation of minima of $A_0$-effective potential can be considered exactly. It is shown that the correct result for the partition function can be obtained by summation of contributions near all minima of the $A_0$-effective potential.

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V. M. Belyaev. 1998-04-27. Z_N-symmetry in gauge theories at finite temperatures. https://arxiv.org/abs/hep-ph/9804424

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