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Gaussian approximation for Ising model. Variational approach

A variant of a Gaussian approximation in Ising model of phase transition is suggested. The method of functional integration with the application of a variational method is put in the basis of the approach. The Hamiltonian (the functional) is presented which in the method of functional integration...

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Bibliographic Details
Main Author: Yanishevsky, V.S.
Format: Article
Language:English
Published: Інститут фізики конденсованих систем НАН України 2000
Series:Condensed Matter Physics
Online Access:http://dspace.nbuv.gov.ua/handle/123456789/121034
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