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Field-theoretic version of a two-dimensional Coulomb gas with repulsive cores
Abstract
The statistical mechanics of a two-dimensional gas of charged particles with repulsive short-distance cores, in addition to their electrostatic Coulomb interactions, is recast into a sine-Gordon-like field theory. The Kosterlitz-Thouless renormalization-group flow equations are readily obtained. The theory may be expressed in terms of fermionic variables. © 1981 The American Physical Society.
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