Fluctuations in the Curie-Weiss Version of the Ising Model with Random Field
J. M. G. Amaro de Matos; J. Fernando Perez; J. M. G. Amaro de Matos; Instituto de Física, Universidade de São Paulo, C. P. 20516, 01498 São Paulo, SP, Brazil; J. Fernando Perez; Instituto de Física, Universidade de São Paulo, C. P. 20516, 01498 São Paulo, SP, Brazil
Журнал:
EPL (Europhysics Letters)
Дата:
1988-02-01
Аннотация:
For the Curie-Weiss version of the Ising Model with random field it is shown that the fluctuations have: i) a Gaussian distribution with random (i. e. sample dependent) mean, if the system is away from criticality or at first-order critical points; ii) a sample-independent non-Gaussian distribution at second- or higher-order critical points.
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