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    • Two site spin correlation function in Bethe-Peierls approximation for Ising model

      Deepak Kumar

      Statistical Physics Volume 7 Issue 1 July 1976 pp 28-33

    • Fulltext

       

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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/007/01/0028-0033

    • Keywords

       

      Spin correlation function; Curie temperature; Bethe-Peierls approximation; Bethe lattice susceptibility

    • Abstract

       

      Two site spin correlation function for an Ising model above Curie temperature has been calculated by generalising Bethe-Peierls approximation. The results derived by a graphical method due to Englert are essentially the same as those obtained earlier by Elliott and Marshall, and Oguchi and Ono. The earlier results were obtained by a direct generalisation of the cluster method of Bethe, while our results are derived by retaining that class of diagrams, which is exact on Bethe lattice.

    • Author Affiliations

       

      Deepak Kumar1

      1. Department of Physics, University of Roorkee, Roorkee - 247667

    • Dates

       
      Published
      July 1976
      Manuscript received
      21 January 1976

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