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Arctic curves of the twenty-vertex model with domain wall boundaries

Abstract : We use the tangent method to compute the arctic curve of the Twenty-Vertex (20V) model with particular domain wall boundary conditions for a wide set of integrable weights. To this end, we extend to the finite geometry of domain wall boundary conditions the standard connection between the bulk 20V and 6V models via the Kagome lattice ice model. This allows to express refined partition functions of the 20V model in terms of their 6V counterparts, leading to explicit parametric expressions for the various portions of its arctic curve. The latter displays a large variety of shapes depending on the weights and separates a central liquid phase from up to six different frozen phases. A number of numerical simulations are also presented, which highlight the arctic curve phenomenon and corroborate perfectly the analytic predictions of the tangent method. We finally compute the arctic curve of the Quarter-turn symmetric Holey Aztec Domino Tiling (QTHADT) model, a problem closely related to the 20V model and whose asymptotics may be analyzed via a similar tangent method approach. Again results for the QTHADT model are found to be in perfect agreement with our numerical simulations.
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Submitted on : Monday, September 7, 2020 - 3:47:45 PM
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Bryan Debin, Philippe Di Francesco, Emmanuel Guitter. Arctic curves of the twenty-vertex model with domain wall boundaries. Journal of Statistical Physics, Springer Verlag, 2020, 179, pp.33-89. ⟨10.1007/s10955-020-02518-y⟩. ⟨cea-02932213⟩

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