Expansions about Free-Fermion Models

2003/03/09 by Saibal Mitra
Physics and Astronomy · Mathematics · #math-ph #cond-mat.stat-mech #math.MP

paper · pdf · doi:10.1063/1.1626270

published as J. Math. Phys. 45 (2004) 100-106 · 8 pages

arxiv created 2003/03/09 · arxiv updated 2009/11/30

Abstract

A simple technique for expanding the free energy of general six-vertex models about free-fermion points is introduced. This technique is used to verify a Coulomb gas prediction about the behavior of the leading singularity in the free energy of the staggered F-model at zero staggered field.

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