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Critical exponents for the long-range Ising chain using a transfer matrix approach

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  • R. F.S. Andrade
  • S. T.R. Pinho

Abstract

The critical behavior of the Ising chain with long-range ferromagnetic interactions decaying with distance r α , 1>α>2, is investigated using a numerically efficient transfer matrix (TM) method. Finite size approximations to the infinite chain are considered, in which both the number of spins and the number of interaction constants can be independently increased. Systems with interactions between spins up to 18 sites apart and up to 2500 spins in the chain are considered. We obtain data for the critical exponents ν associated with the correlation length based on the Finite Range Scaling (FRS) hypothesis. FRS expressions require the evaluation of derivatives of the thermodynamical properties, which are calculated with the help of analytical recurrence expressions obtained within the TM framework. The Van den Broeck extrapolation procedure is applied in order to estimate the convergence of the exponents. The TM procedure reduces the dimension of the matrices and circumvents several numerical matrix operations. Copyright EDP Sciences/Società Italiana di Fisica/Springer-Verlag 2006

Suggested Citation

  • R. F.S. Andrade & S. T.R. Pinho, 2006. "Critical exponents for the long-range Ising chain using a transfer matrix approach," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 50(1), pages 33-37, March.
    • Handle: RePEc:spr:eurphb:v:50:y:2006:i:1:p:33-37
    DOI: 10.1140/epjb/e2006-00114-1
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    Cited by:

    1. Xiao Li & Xiang Niu & Bing Wang & Peng Gao & Yu Liu, 2016. "Driving Forces of Dynamic Changes in Soil Erosion in the Dahei Mountain Ecological Restoration Area of Northern China Based on GIS and RS," PLOS ONE, Public Library of Science, vol. 11(3), pages 1-15, March.

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