2006/09/30 by Helmut G. Katzgraber, L. W. Lee, Lik Wee Lee +1 · 3 citations
Computer Science · Physics and Astronomy · #Complex Network Analysis Techniques #Theoretical and Computational Physics #Topological and Geometric Data Analysis #cond-mat.dis-nn
paper · pdf · doi:10.1103/physrevb.75.014412
published as Phys. Rev. B 75, 014412 (2007) · 10 pages, 10 figures, 2 tables
openalex publication_date 2007/01/10 · arxiv created 2007/01/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Monte Carlo data of the two-dimensional Ising spin glass with bimodal interactions are presented with the aim of understanding the low-temperature physics of the model. An analysis of the specific heat, spin-glass susceptibility, finite-size correlation length, and the Binder ratio is performed to try to verify a recent proposal in which for large system sizes and finite but low temperatures the effective critical exponents are identical to the critical exponents of the two-dimensional Ising spin glass with Gaussian interactions. Our results show that with present system sizes the recently proposed scenario, in which the two-dimensional Ising spin glass with bimodally distributed interactions is in the same universality class as the model with Gaussian-distributed disorder at low but finite temperatures, cannot be reliably proven.