Braga G.A., Ferreira S.J., Barreto F.C. — Upper Bounds on the Critical Temperature for the Two-Dimensional Blume-Emery-Griffiths Model
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Название: Upper Bounds on the Critical Temperature for the Two-Dimensional Blume-Emery-Griffiths Model
Авторы: Braga G.A., Ferreira S.J., Barreto F.C.
Аннотация:
Journal of Statistical Physics, Vol. 76, Nos. 3/4, 1994, p. 819-834.
We obtain rigorous upper bounds for the critical temperature associated with second-order phase transitions of the two-dimensional spin-I BEG model for real values of K and D coupling constants and for J/> 0. We use some correlation equalities and inequalities to show the exponential decay of the two-point function characterizing the disordered phase.
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