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1 On weak coupling expansion in models with unbroken symmetry O. Borisenko, a (1998)
by Unknown Authors
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@MISC{981on,
author = {},
title = {1 On weak coupling expansion in models with unbroken symmetry O. Borisenko, a},
year = {1998}
}
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Abstract
An investigation of the weak coupling region of 2D SU(N) spin models is presented. An expansion of the free energy and correlation functions at low temperatures is performed in the link formulation with periodic boundary conditions (BC). The resulting asymptotics is shown to be nonuniform in the volume for the free energy. This paper deals with 2D SU(N) × SU(N) principal chiral model in the weak coupling region whose partition function (PF) is given by
