Critical correlations in a Z-invariant inhomogeneous ising model

We study the critical spin-spin correlation function in the Z-invariant inhomogeneous Ising model, which includes the rectangular, triangular, honeycomb, and checkerboard lattices as special cases. Using quadratic difference equations we derive various explicit representations for the correlation function, confirming and simplifying also a miraculous result of Baxter.

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Year of publication:	1987
Authors:	Au-Yang, Helen ; Perk, Jacques H.H.
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 144.1987, 1, p. 44-104
Publisher:	Elsevier

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Type of publication:	Article
Source:	RePEc - Research Papers in Economics

Persistent link: https://ebvufind01.dmz1.zbw.eu/10010586718