{ "id": "cond-mat/9901105", "version": "v2", "published": "1999-01-12T16:59:39.000Z", "updated": "1999-06-28T21:09:08.000Z", "title": "Fermi Statistics of Weakly Exicted Granular Systems in a Vibrating Bed I: Molecular Dynamics Simulations", "authors": [ "Paul V. Quinn", "Daniel C. Hong" ], "comment": "16 pages including captions and references and 9 figures", "categories": [ "cond-mat.stat-mech", "cond-mat.mtrl-sci" ], "abstract": "Molecular dynamics simulations were carried out to test the thermodynamic theory of weakly excited, two-dimensional granular systems [Hayakawa and Hong, Phys. Rev. Lett. 78, 2764 (1997)], where granular materials are viewed as a collection of spinless Fermions. We first determine the global temperature T by fitting the steady state density profile to the Fermi distribution function, and then measure the center of mass, , and its fluctuations, <(\\Delta z(T))^2> as a function of T. We find a fairly good agreement between theory and simulations, in particular, in the estimation of the temperature and the scaling behavior of and <(\\Delta z(T))^2>.", "revisions": [ { "version": "v2", "updated": "1999-06-28T21:09:08.000Z" } ], "analyses": { "keywords": [ "molecular dynamics simulations", "weakly exicted granular systems", "fermi statistics", "two-dimensional granular systems" ], "note": { "typesetting": "TeX", "pages": 16, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "1999cond.mat..1105Q" } } }