2001/07/31 by Annalisa Fierro, Mario Nicodemi, Antonio Coniglio · 4 citations
Engineering · Materials Science · Physics and Astronomy · #Granular flow and fluidized beds #Material Dynamics and Properties #Theoretical and Computational Physics #cond-mat.dis-nn #cond-mat.stat-mech
paper · pdf · doi:10.1209/epl/i2002-00173-x
published as Europhys. Lett. 59 (5), 642 (2002) · revised and improved version including new results on a 3D hard-spheres model; 4 pages, 4 figures
openalex publication_date 2002/09/01 · arxiv created 2002/09/02 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/30
The present paper proposes a Statistical Mechanics approach to the inherent states of glassy systems and granular materials, following the original ideas developed by Edwards for granular materials. Two lattice models, a diluted spin glass and a system of hard spheres under gravity, introduced in the context of glassy systems and granular materials, are evolved using a "tap dynamics" analogous to that of experiments on granular materials. The asymptotic macrostates, reached by the system, are shown to be described by a single thermodynamical parameter, and this parameter to coincide with the temperature, called the "configurational temperature", predicted assuming that the distribution among the inherent states satisfies the principle of maximum entropy.