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arXiv:2307.02224 · Physical Review Letters

Quantifying Memory in Spin Glasses

Ilaria Paga, J. P. He, Marco Baity‐Jesi, Enrico Calore, Andrés De la Cruz, L. A. Fernández, Jose Miguel Gil-Narvion, I. González-Adalid Pemartín, A. Gordillo-Guerrero, D. Íñiguez, A. Maiorano, Enzo Marinari, Víctor Martín-Mayor, J. Moreno-Gordo, A. Muñoz Sudupe, Denis Navarro, R. Orbach, Giorgio Parisi A, Sergio Perez-Gaviro, Federico Ricci‐Tersenghi, Juan Jesus Ruiz-Lorenzo, Sebastiano Fabio Schifano, Deborah L. Schlagel, Beatriz Seoane, Alfonso Tarancón, David Yllanes

Published Dec 20, 2024• 5 citations

Abstract

Rejuvenation and memory, long considered the distinguishing features of spin glasses, have recently been proven to result from the growth of multiple length scales. This insight, enabled by simulations on the Janus II supercomputer, has opened the door to a quantitative analysis. We combine numerical simulations with comparable experiments to introduce two coefficients that quantify memory. A third coefficient has been recently presented by Freedberg et al. We show that these coefficients are physically equivalent by studying their temperature and waiting-time dependence.

DOI: 10.1103/physrevlett.133.256704

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