New Derivation of the Ising Model Cluster Expansion
- 1 March 1967
- journal article
- research article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 8 (3) , 507-511
- https://doi.org/10.1063/1.1705223
Abstract
A new and simple derivation of the cluster expansion for the free energy of an Ising model with arbitrary range of interaction is presented. The proof explicitly isolates the dependence of the free energy on the strength of individual interaction bonds. Several points of principle are discussed. An illustrative appendix gives simple applications.Keywords
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