Aging Rate of Spin Glasses from Simulations Matches Experiments

2018/03/31 by Marco Baity‐Jesi, Janus Collaboration, M. Baity-Jesi +34 · 5 citations
Materials Science · Mathematics · Physics and Astronomy · #Artificial intelligence #Computer science #Condensed matter physics #Crossover #Exponent #Janus #Material Dynamics and Properties #Materials science #Nanotechnology #Physics #Spin (aerodynamics) #Spin glass #Statistical physics #Stochastic processes and statistical mechanics #Theoretical and Computational Physics #Thermodynamics #cond-mat.dis-nn #cond-mat.stat-mech

paper · pdf · doi:10.1103/physrevlett.120.267203

published as Phys. Rev. Lett. 120, 267203 (2018) · Version accepted for publication in PRL. 12 pages, 9 figures

arxiv created 2018/06/18 · openalex publication_date 2018/06/28 · arxiv updated 2018/07/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

Experiments on spin glasses can now make precise measurements of the exponent z(T) governing the growth of glassy domains, while our computational capabilities allow us to make quantitative predictions for experimental scales. However, experimental and numerical values for z(T) have differed. We use new simulations on the Janus II computer to resolve this discrepancy, finding a time-dependent z(T,t_w), which leads to the experimental value through mild extrapolations. Furthermore, theoretical insight is gained by studying a crossover between the T=T_c and T=0 fixed points.

Citations

• Correlation timescales in the Sherrington-Kirkpatrick model

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