Analytical calculation of critical temperatures in some spin systems
Z. Burda, J. Wosiek
Abstract
A new method for locating analytically critical temperatures is discussed. It is exact for selfdual systems. When applied the two coupled layers of Ising spins it deviates from our preliminary Monte Carlo estimates by 1.5 standard deviations. It predicts critical temperature of the three dimensional Ising model in terms of the solution of the two layer Ising system.
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