Numerical evidence for rejuvenation in simulation that mimics the experimental protocol of the Thermoremanent and Zero-Field Cooling

The scaling law introduced in Ref.[1-2] solved a three-decade problem concerning the nature of the Zeeman energy [3-4]. The dynamical arrest found upon cooling glass formers to their glass temperature $T_\mathrm{g}$ is explained in terms of the correlation length $\xi$ which is used as a caliper for the magnetic response both in simulations and experiments. We study the non-equilibrium spin-glass dynamics in a large-scale simulation of the Ising-Edwards-Anderson (IEA) model carried out on the Janus~II custom-built supercomputer [5]. We unveil differences between the experimental Thermoremanent protocol (TRM) and the Zero-Field Cooling (ZFC) one. For the first time, we observe the rejuvenation effect in simulations and we use these protocols to search for memory and rejuvenation effects,[6].

[1] Zhai, Q. and Paga, I. et al PRL 125,237202 (2020)

[2] Paga, I. and Zhai, Q. et al JSTAT 033301 (2021)

[3] A. Cavagna, PR 476, 51 (2009)

[4] P. Charbonneau et al, Nature Comminications 5, 3725 (2014)

[5] Janus collaboration, Comp. Phys. Comm 185, 550 (2021)

[6] Janus collaboration, in preparation (2021)