Temperature chaos is present in off-equilibrium spin-glass dynamics
Janus Collaboration: M. Baity-Jesi, E. Calore, A. Cruz, L.A., Fernandez, J.M. Gil-Narvion, I. Gonzalez-Adalid Pemartin, A., Gordillo-Guerrero, D. I\~niguez, A. Maiorano, E. Marinari, V. Martin-Mayor,, J. Moreno-Gordo, A. Mu\~noz-Sudupe, D. Navarro, I. Paga, G. Parisi, S.
TL;DR
This paper demonstrates the presence of dynamic temperature chaos in off-equilibrium spin-glass dynamics, showing that the coherence length governs this effect and providing a foundation for experimental analysis.
Contribution
It introduces the concept of dynamic temperature chaos in non-equilibrium spin glasses and characterizes its spatial heterogeneity and dependence on coherence length.
Findings
Dynamic temperature chaos is observed in non-equilibrium spin-glass dynamics.
The coherence length controls the extent of temperature chaos.
The study is supported by large-scale simulations on Janus II supercomputer.
Abstract
We find a dynamic effect in the non-equilibrium dynamics of a spin glass that closely parallels equilibrium temperature chaos. This effect, that we name dynamic temperature chaos, is spatially heterogeneous to a large degree. The key controlling quantity is the time-growing spin-glass coherence length. Our detailed characterization of dynamic temperature chaos paves the way for the analysis of recent and forthcoming experiments. This work has been made possible thanks to the most massive simulation to date of non-equilibrium dynamics, carried out on the Janus~II custom-built supercomputer.
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