RT Journal Article
T1 Memory and rejuvenation effects in spin glasses are governed by more than one length scale
A1 Baity-Jesi, M.
A1 Calore, E.
A1 Cruz, A.
A1 Fernández Pérez, Luis Antonio
A1 Gil-Narvion, J. M.
A1 González-Adalid Pemartín, Isidoro
A1 Gordillo-Guerrero, A.
A1 Iñiguez, D.
A1 Maiorano, A.
A1 Marinari, E.
A1 Martín Mayor, Víctor
A1 Moreno-Gordo, J.
A1 Muñoz Sudupe, Antonio
A1 Navarro, D.
A1 Paga, I.
A1 Parisi, G.
A1 Perez-Gaviro, S.
A1 Ricci-Tersenghi, F.
A1 Ruiz-Lorenzo, J. J.
A1 Schifano, S. F.
A1 Seoane Bartolomé, Beatriz
A1 Tarancon, A.
A1 Yllanes, D.
AB Memory and rejuvenation effects in the magnetic response of off-equilibrium spin glasses have been widely regarded as the doorway into the experimental exploration of ultrametricity and temperature chaos. Unfortunately, despite more than twenty years of theoretical efforts following the experimental discovery of memory and rejuvenation, these effects have, thus far, been impossible to reliably simulate. Yet, three recent developments convinced us to accept this challenge: first, the custom-built Janus II supercomputer makes it possible to carry out simulations in which the very same quantities that can be measured in single crystals of CuMn are computed from the simulation, allowing for a parallel analysis of the simulation and experimental data. Second, Janus II simulations have taught us how numerical and experimental length scales should be compared. Third, we have recently understood how temperature chaos materializes in aging dynamics. All these three aspects have proved crucial for reliably reproducing rejuvenation and memory effects on the computer. Our analysis shows that at least three different length scales play a key role in aging dynamics, whereas essentially all the theoretical analyses of the aging dynamics emphasize the presence and crucial role of a single glassy correlation length.
PB Nature Portfolio
SN 1745-2473
YR 2023
FD 2023-04-27
LK https://hdl.handle.net/20.500.14352/125985
UL https://hdl.handle.net/20.500.14352/125985
LA eng
NO aity-Jesi, M., Calore, E., Cruz, A. et al. Memory and rejuvenation effects in spin glasses are governed by more than one length scale. Nat. Phys. 19, 978–985 (2023). https://doi.org/10.1038/s41567-023-02014-6
NO © The Author(s), under exclusive licence to Springer Nature Limited 2023, corrected publication 2023.2019-T1/TIC-12776;FPU18/02665;2021–2023 Margarita Salas grant;A0375-2020-36761;grant PR44/21-29937.
NO Ministerio de Ciencia, Innovación y Universidades (España)
NO Agencia Estatal de Investigación (España)
NO European Commission
NO Comunidad de Madrid
NO Universidad Complutense de Madrid
NO LazioInnova
NO Banco de Santander
DS Docta Complutense
RD 1 ene 2026