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Simplified tetrahedron equations: Fermionic realization

J. Ambjorn, Sh. Khachatryan, A. Sedrakyan

cond-mat.stat-mecharXiv:cond-mat/0508148

Abstract

The natural generalization of the (two-dimensional) Yang-Baxter equations to three dimensions is known as the Zamolodchikov's tetrahedron equations. We consider a simplified version of these equations which still ensures the commutativity of the transfer matrices with different spectral parameters and we present a family of free fermionic solutions.

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