Summary
The Migdal scheme is extended to investigate the phase structures of theZ(N) lattice gauge theory at finite temperature. The critical couplingβ c as the function of temperatureT (orN t) for the (2+1)- and (3+1)-dimensionalZ(2) andZ(3) lattice gauge theories are obtained and the results are compared with the datum of the mean-field technique and the Monte Carlo simulation.
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Unité Propre de Recherche, UPR 7061.
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Xu, Zx., Zhu, By. Migdal approximation forZ(2) andZ(3) lattice gauge theories at finite temperature. Nuov Cim A 103, 691–700 (1990). https://doi.org/10.1007/BF02789021
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DOI: https://doi.org/10.1007/BF02789021