Geodesic
Application of field theory methods in the Ising model. I
Teoretičeskaâ i matematičeskaâ fizika, Tome 14 (1973) no. 2, pp. 272-276 
I. V. Volovich; E. A. Dynin; V. A. Zagrebnov; V. P. Frolov. Application of field theory methods in the Ising model. I. Teoretičeskaâ i matematičeskaâ fizika, Tome 14 (1973) no. 2, pp. 272-276. http://geodesic.mathdoc.fr/item/TMF_1973_14_2_a11/
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Voir la notice de l'article provenant de la source Math-Net.Ru

Using the analogy between the Ising model and an essentially nonlinear field theory it is shown that the selfconsistent Curie-Weiss solution can be obtained from a certain functional equation and that it corresponds to the quasiclassical approximation in field theory. The appearance of spontaneous magnetization can be interpreted as the formation of bound states.

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