Publication:
The Hintermann-Merlini-Baxter-Wu and the infinite-coupling-limit Ashkin-Teller models

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2013-03-11
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Elsevier
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Abstract
We show how the Hintermann–Merlini–Baxter–Wu model (which is a generalization of the well-known Baxter–Wu model to a general Eulerian triangulation) can be mapped onto a particular infinite-coupling-limit of the Ashkin–Teller model. We work out some mappings among these models, also including the standard and mixed Ashkin–Teller models. Finally, we compute the phase diagram of the infinite-coupling-limit Ashkin–Teller model on the square, triangular, hexagonal, and kagome lattices.
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Baxter-Wu model, Ashkin-Teller model, Hintermann-Merlini-Baxter-Wu model, Infinite-Coupling-Limit Ashkin-Teller model, Partial trace transformation, Plane Eulerian triangulation
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Huang, Y., Deng, Y., Jacobsen, J. L. & Salas, J. (2013). The Hintermann–Merlini–Baxter–Wu and the infinite-coupling-limit Ashkin–Teller models. Nuclear Physics B, 868(2), pp. 492–538.