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Six - Vertex Model with Domain wall boundary conditions. Variable inhomogeneities

J. de Gier, V. Korepin

math-pharXiv:math-ph/0101036

Abstract

We consider the six-vertex model with domain wall boundary conditions. We choose the inhomogeneities as solutions of the Bethe Ansatz equations. The Bethe Ansatz equations have many solutions, so we can consider a wide variety of inhomogeneities. For certain choices of the inhomogeneities we study arrow correlation functions on the horizontal line going through the centre. In particular we obtain a multiple integral representation for the emptiness formation probability that generalizes the known formulæfor XXZ antiferromagnets.

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