Skip to Main content Skip to Navigation
Journal articles

Activated Aging Dynamics and Effective Trap Model Description in the Random Energy Model

Abstract : We study the out-of-equilibrium aging dynamics of the Random Energy Model (REM) ruled by a single spin-flip Metropolis dynamics. We focus on the dynamical evolution taking place on timescales diverging with the system size. Our aim is to show to what extent the activated dynamics displayed by the REM can be described in terms of an effective trap model. We identify two time regimes: the first one corresponds to the process of escaping from a basin in the energy landscape and to the subsequent exploration of high energy configurations, whereas the second one corresponds to the evolution from a deep basin to the other. By combining numerical simulations with analytical arguments we show why the trap model description does not hold in the former but becomes exact in the second.
Document type :
Journal articles
Complete list of metadatas

Cited literature [34 references]  Display  Hide  Download

https://hal-cea.archives-ouvertes.fr/cea-01682952
Contributor : Emmanuelle de Laborderie <>
Submitted on : Friday, January 12, 2018 - 4:13:56 PM
Last modification on : Tuesday, September 22, 2020 - 3:49:40 AM
Long-term archiving on: : Tuesday, May 8, 2018 - 3:43:04 AM

File

1708.03268.pdf
Files produced by the author(s)

Identifiers

Citation

M Baity-Jesi, G. Biroli, C. Cammarota. Activated Aging Dynamics and Effective Trap Model Description in the Random Energy Model. Journal of Statistical Mechanics: Theory and Experiment, IOP Publishing, 2018, 2018, pp.013301. ⟨10.1088/1742-5468/aa9f43⟩. ⟨cea-01682952⟩

Share

Metrics

Record views

669

Files downloads

748