Equilibrium Distribution of the Inherent States and their Dynamics in Glassy Systems and Granular Media

摘要

The present paper proposes a Statistical Mechanics approach to the inherentstates of glassy systems and granular materials, following the original ideasdeveloped by Edwards for granular materials. Two lattice models, a diluted SpinGlass and a system of hard-spheres under gravity, introduced in the context ofglassy systems and granular materials, are evolved using a ``tap dynamics''analogous to that of experiments on granular materials. The asymptoticmacrostates, reached by the system, are shown to be described by a singlethermodynamical parameter, and this parameter to coincide with the temperature,called the ``configurational temperature'', predicted assuming that thedistribution among the inherent states satisfies the principle of maximumentropy.