Free energy of the random Ising model in terms of the magnetizations of sites

T. Morita

Physica A: Statistical Mechanics and its Applications, 1983, vol. 119, issue 1, 143-152

Abstract: The free energy in the pair approximation of the cluster variation method is given in terms of the magnetizations of sites for the random Ising model. For a number of samples of the random-bond Ising model with nearest-neighbour interactions of +J and -J, on the square lattice, search is made of the configuration which gives the lowest free energy. It is concluded that the spin-glass state is the state which gives the lowest free energy in the pair approximation for certain values of temperature and probabilities of J and -J.

Date: 1983
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Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:119:y:1983:i:1:p:143-152

DOI: 10.1016/0378-4371(83)90151-6

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