doi:10.1038/s42005-021-00565-9engBaity-Jesi M.Calore E.Cruz A.Fernandez L.A.Gil-Narvion J.M.Gonzalez-Adalid Pemartin I.Gordillo-Guerrero A.Iñiguez D.Maiorano A.Marinari E.Martin-Mayor V.Moreno-Gordo J.Muñoz-Sudupe A.Navarro D.Paga I.Parisi G.Perez-Gaviro S.Ricci-Tersenghi F.Ruiz-Lorenzo J.J.Schifano S.F.Seoane B.Tarancon A.Tripiccione R.Yllanes D.Temperature chaos is present in off-equilibrium spin-glass dynamicsART-2021-126514Experiments featuring non-equilibrium glassy dynamics under temperature changes still await interpretation. There is a widespread feeling that temperature chaos (an extreme sensitivity of the glass to temperature changes) should play a major role but, up to now, this phenomenon has been investigated solely under equilibrium conditions. In fact, the very existence of a chaotic effect in the non-equilibrium dynamics is yet to be established. In this article, we tackle this problem through a large simulation of the 3D Edwards-Anderson model, carried out on the Janus II supercomputer. We find a dynamic effect that closely parallels equilibrium temperature chaos. This dynamic temperature-chaos effect is spatially heterogeneous to a large degree and turns out to be controlled by the spin-glass coherence length ¿. Indeed, an emerging length-scale ¿* rules the crossover from weak (at ¿ « ¿*) to strong chaos (¿ » ¿*). Extrapolations of ¿* to relevant experimental conditions are provided.2021http://zaguan.unizar.es/record/11067610.1038/s42005-021-00565-9http://zaguan.unizar.es/record/110676oai:zaguan.unizar.es:110676info:eu-repo/grantAgreement/EC/H2020/694925/EU/Low Temperature Glassy Systems/LoTGlasSyThis project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 694925-LoTGlasSyinfo:eu-repo/grantAgreement/ES/MCIU/FPU18/02665info:eu-repo/grantAgreement/ES/MINECO-AEI-FEDER/FIS2016-76359-Pinfo:eu-repo/grantAgreement/ES/MINECO-AEI-FEDER/PGC2018-094684-B-C21info:eu-repo/grantAgreement/ES/MINECO-AEI-FEDER/PGC2018-094684-B-C22info:eu-repo/grantAgreement/ES/MINECO-AEI-FEDER/PID2019-103939RB-I00Communications Physics 4, 1 (2021), 74 [7 pp]byhttp://creativecommons.org/licenses/by/3.0/es/info:eu-repo/semantics/openAccess