Rejuvenation in the random energy model
Dept. de Física Fonamental - Diagonal 647. Pta. 3a. 08028 Barcelona, Spain
2 Service de Physique de l'État Condensé, Centre d'études de Saclay Orme des Merisiers, 91191 Gif-sur-Yvette Cedex, France
Accepted: 23 July 2001
We show that the Random Energy Model has interesting rejuvenation properties in its frozen phase. Different "susceptibilities" to temperature changes, for the free energy and for other ("magnetic" ) observables, can be computed exactly. These susceptibilities diverge at the transition temperature, as for the free energy.
PACS: 05.40.-a – Fluctuation phenomena, random processes, noise, and Brownian motion / 64.70.-p – Specific phase transitions
© EDP Sciences, 2001