Abstract
It is proved that the free energy per spin in the thermodynamic limit of an Ising model on a lattice with coordination numberz approaches the classical Curie-Weiss free energy in the limitz→∞. The infinite spacial dimension limit of nearest neighbour lattice models is a special case of this result.
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Communicated by G. Gallavotti
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Thompson, C.J. Ising model in the high density limit. Commun.Math. Phys. 36, 255–262 (1974). https://doi.org/10.1007/BF01646198
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DOI: https://doi.org/10.1007/BF01646198