Correlation-function identities for general Ising models

For Ising models with general interactions correlation-function identities of the form ΣBλB〈σB〉〈σBσA〉 = 0 are studied. It is shown that each identity of this form is equivalent to a set of special identities, in which the coefficients λB take only the values -1,0,1. A necessary and sufficient condition for the validity of such a special identity is derived.

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Year of publication:	1978
Authors:	Boel, R.J. ; Kasteleyn, P.W.
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 93.1978, 3, p. 503-516
Publisher:	Elsevier

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

Persistent link: https://www.econbiz.de/10011063824