Aging in the random energy model.
The random energy model (REM) has become a key reference model for glassy systems. In particular, it is expected to provide a prime example of a system whose dynamics shows aging, a universal phenomenon characterizing the dynamics of complex systems. The analysis of its activated dynamics is based on so-called trap models, introduced by Bouchaud, that are also used to mimic the dynamics of more complex disordered systems. In this Letter we report the first results that justify rigorously the trap model predictions in the REM.
Arous
Gérard Ben
GB
DMA, EPFL, CH-1015 Lausanne, Switzerland.
Bovier
Anton
A
Gayrard
Véronique
V