Vortex free energy and string tension at strong and intermediate coupling |
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Authors: | Gernot Münster |
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Institution: | II. Institut für Theorestische Physik der Universität Hamburg, Germany |
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Abstract: | We present results of high temperature expansions up to order g?24 for the vortex free energy respectively string tension in pure lattice gauge theories with gauge groups SU(2) and Z2 in 3 and 4 dimensions. For SU(2) in 4 dimensions the result is compared with Monte Carlo calculations of Creutz and is in good agreement. An intermediate coupling region is seen, where the string tension smoothly interpolates between strong coupling and weak coupling behaviour. |
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