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Yang-Baxter equation for the asymmetric eight-vertex model

W. Galleas·M. J. Martins
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Abstract

In this note we study `a la Baxter [1] the possible integrable manifolds of the asymmetric eight-vertex model. As expected they occur when the Boltzmann weights are either symmetric or satisfy the free-fermion condition but our analysis clarify the reason both manifolds need to share a universal invariant. We also show that the free-fermion condition implies three distinct classes of integrable models.

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W. Galleas, M. J. Martins. 2003-03-18. Yang-Baxter equation for the asymmetric eight-vertex model. https://doi.org/10.1103/physreve.66.047103

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