On the universal behavior of two-dimensional Ising spin glasses

Fernando D. Nobre

Physica A: Statistical Mechanics and its Applications, 2000, vol. 280, issue 3, 456-464

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.

Keywords: Spin glasses; Renormalization group (search for similar items in EconPapers)
Date: 2000
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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:280:y:2000:i:3:p:456-464

DOI: 10.1016/S0378-4371(00)00068-6

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