{ "id": "cond-mat/0007422", "version": "v2", "published": "2000-07-26T17:27:20.000Z", "updated": "2000-11-08T11:22:43.000Z", "title": "Universal behavior in the static and dynamic properties of the $α$-XY model", "authors": [ "Andrea Giansanti", "Daniele Moroni", "Alessandro Campa" ], "comment": "23 pages, REVTEX 9 eps figures included. Talk presented at the Int. Conf. on \"Classical and Quantum Complexity and Nonextensive Thermodynamics\", Denton (Texas) April 3-6 2000 Revised version, accepted for publication in Chaos Solitons and Fractals", "journal": "Chaos, Solitons and Fractals 13, 407 (2002)", "categories": [ "cond-mat.stat-mech" ], "abstract": "The $\\alpha$-XY model generalizes, through the introduction of a power-law decaying potential, a well studied mean-field hamiltonian model with attractive long-range interactions. In the $\\alpha$-model, the interaction between classical rotators on a lattice is gauged by the exponent $\\alpha$ in the couplings decaying as $r^\\alpha$, where $r$ are distances between sites. We review and comment here a few recent results on the static and dynamic properties of the $\\alpha$-model. We discuss the appropriate $\\alpha$ dependent rescalings that map the canonical thermodynamics of the $\\alpha$-model into that of the mean field model. We also show that the chaotic properties of the model, studied as a function of $\\alpha$ display an universal behaviour.", "revisions": [ { "version": "v2", "updated": "2000-11-08T11:22:43.000Z" } ], "analyses": { "keywords": [ "dynamic properties", "universal behavior", "mean-field hamiltonian model", "xy model generalizes", "mean field model" ], "tags": [ "journal article" ], "note": { "typesetting": "RevTeX", "pages": 23, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2000cond.mat..7422G" } } }