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On the universal behavior of two-dimensional Ising spin glasses

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  • Nobre, Fernando D.

Abstract

Ising spin glasses are studied, at zero temperature, on a hierarchical lattice as an approach to the square lattice. The stiffness exponent y, which governs the behavior of the interactions under changes of scale, is computed for several distinct continuous symmetric probability distributions for the couplings. All distributions considered lead to the same estimates, i.e., the exponent y is universal. Our results are compared with other estimates available for the two-dimensional Gaussian Ising spin glass.

Suggested Citation

  • Nobre, Fernando D., 2000. "On the universal behavior of two-dimensional Ising spin glasses," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 280(3), pages 456-464.
    • Handle: RePEc:eee:phsmap:v:280:y:2000:i:3:p:456-464
    DOI: 10.1016/S0378-4371(00)00068-6
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    Keywords

    Spin glasses; Renormalization group;

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