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arXiv · 1803.02264

Aging rate of spin glasses from simulations matches experiments

Janus Collaboration·M. Baity-Jesi·E. Calore·A. Cruz·L. A. Fernandez·J. M. Gil-Narvion·A. Gordillo-Guerrero·D. Iñiguez·A. Maiorano·E. Marinari·V. Martin-Mayor·J. Moreno-Gordo·A. Muñoz-Sudupe·D. Navarro·G. Parisi·S. Perez-Gaviro·F. Ricci-Tersenghi·J. J. Ruiz-Lorenzo·S. F. Schifano·B. Seoane·A. Tarancon·R. Tripiccione·D. Yllanes
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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.

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Janus Collaboration, M. Baity-Jesi, E. Calore, A. Cruz, L. A. Fernandez, J. M. Gil-Narvion, A. Gordillo-Guerrero, D. Iñiguez, A. Maiorano, E. Marinari, V. Martin-Mayor, J. Moreno-Gordo, A. Muñoz-Sudupe, D. Navarro, G. Parisi, S. Perez-Gaviro, F. Ricci-Tersenghi, J. J. Ruiz-Lorenzo, S. F. Schifano, B. Seoane, A. Tarancon, R. Tripiccione, D. Yllanes. 2018-03-06. Aging rate of spin glasses from simulations matches experiments. https://doi.org/10.1103/physrevlett.120.267203

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