The quenched-disordered Ising model in two and four dimensions

  title={The quenched-disordered Ising model in two and four dimensions},
  author={Antonio Gordillo-Guerrero and Ralph Kenna and Juan Jesus Ruiz-Lorenzo}
We briefly review the Ising model with uncorrelated, quenched random-site or random-bond disorder, which has been controversial in both two and four dimensions. In these dimensions, the leading exponent α, which characterizes the specific-heat critical behaviour, vanishes and no Harris prediction for the consequences of quenched disorder can be made. In the two-dimensional case, the controversy is between the strong universality hypothesis which maintains that the leading critical exponents are… CONTINUE READING


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See also N . A . Shpot , Zh . Eksp . Teor . Fiz . 98 , 1762 (

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