{ "id": "cond-mat/0401179", "version": "v1", "published": "2004-01-12T19:09:05.000Z", "updated": "2004-01-12T19:09:05.000Z", "title": "Vlasov stability of the Hamiltonian Mean Field model", "authors": [ "Celia Anteneodo", "Raul O. Vallejos" ], "comment": "11 pages, 5 figures. Submitted as a contribution to the proceedings of the International Workshop on Trends and Perspectives on Extensive and Non-Extensive Statistical Mechanics, November, 19-21, 2003, Angra dos Reis, Brazil", "doi": "10.1016/j.physa.2004.06.006", "categories": [ "cond-mat.stat-mech" ], "abstract": "We investigate the dynamical stability of a fully-coupled system of $N$ inertial rotators, the so-called Hamiltonian Mean Field model. In the limit $N \\to \\infty$, and after proper scaling of the interactions, the $\\mu$-space dynamics is governed by a Vlasov equation. We apply a nonlinear stability test to (i) a selected set of spatially homogeneous solutions of Vlasov equation, qualitatively similar to those observed in the quasi-stationary states arising from fully magnetized initial conditions, and (ii) numerical coarse-grained distributions of the finite-$N$ dynamics. Our results are consistent with previous numerical evidence of the disappearance of the homogenous quasi-stationary family below a certain energy.", "revisions": [ { "version": "v1", "updated": "2004-01-12T19:09:05.000Z" } ], "analyses": { "keywords": [ "hamiltonian mean field model", "vlasov stability", "vlasov equation", "nonlinear stability test", "fully magnetized initial conditions" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 11, "language": "en", "license": "arXiv", "status": "editable" } } }