Communications in Mathematical Physics

, Volume 235, Issue 3, pp 379-425

Glauber Dynamics of the Random Energy Model

I. Metastable Motion on the Extreme States
  • Gérard Ben ArousAffiliated withEcole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland. E-mail: benarous@cims.nyu.edu
  • , Anton BovierAffiliated withWeierstrass-Institut für Angewandte Analysis und Stochastik, Mohrenstrasse 39, 10117 Berlin, Germany. E-mail: bovier@wias-berlin.de
  • , Véronique GayrardAffiliated withEcole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland. E-mail: benarous@cims.nyu.edu

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Abstract:

 We investigate the long-time behavior of the Glauber dynamics for the random energy model below the critical temperature. We give very precise estimates on the motion of the process to and between the states of extremal energies. We show that when disregarding time, the consecutive steps of the process on these states are governed by a Markov chain that jumps uniformly on all possible states. The mean times of these jumps are also computed very precisely and are seen to be asymptotically independent of the terminal point. A first indicator of aging is the observation that the mean time of arrival in the set of states that have waiting times of order T is itself of order T. The estimates proven in this paper will furnish crucial input for a follow-up paper where aging is analysed in full detail.