paper

Exact solution and interfacial tension of the six-vertex model with anti-periodic boundary conditions

arXiv:hep-th/9502040 · doi:10.1088/0305-4470/28/10/009

Abstract

We consider the six-vertex model with anti-periodic boundary conditions across a finite strip. The row-to-row transfer matrix is diagonalised by the `commuting transfer matrices' method. {}From the exact solution we obtain an independent derivation of the interfacial tension of the six-vertex model in the anti-ferroelectric phase. The nature of the corresponding integrable boundary condition on the spin chain is also discussed.

18 pages, LaTeX with 1 PostScript figure

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