The cluster variation method and the method of the reducibility of density matrices

Using the Ising model in the ferromagnetic case in the pair and the tetrahedron approximations as examples, the equivalence between the cluster variation method and the method of the reducibility of density matrices is demonstrated.

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Year of publication:	1984
Authors:	Katsura, Shigetoshi ; Kikuchi, Ryoichi
Published in:	Physica A: Statistical Mechanics and its Applications. - Elsevier, ISSN 0378-4371. - Vol. 123.1984, 2, p. 595-604
Publisher:	Elsevier

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

Persistent link: https://www.econbiz.de/10010874331