{
  "id": "0711.1660",
  "version": "v1",
  "published": "2007-11-11T16:49:21.000Z",
  "updated": "2007-11-11T16:49:21.000Z",
  "title": "The Hamiltonian Mean Field model: anomalous or normal diffusion?",
  "authors": [
    "Andrea Antoniazzi",
    "Duccio Fanelli",
    "Stefano Ruffo"
  ],
  "comment": "Contributed paper for the international Conference on Complexity, Metastability, and Nonextensivity - CTNEXT 07. To appear in the AIP Conference Proceedings 965",
  "doi": "10.1063/1.2828723",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "We consider the out-of-equilibrium dynamics of the Hamiltonian Mean Field (HMF) model, by focusing in particular on the properties of single-particle diffusion. As we shall here demonstrate analytically, if the autocorrelation of momenta in the so-called quasi-stationary states can be fitted by a q-exponential, then diffusion ought to be normal for q<2, at variance with the interpretation of the numerical experiments proposed in Refs. A. Pluchino, A. Rapisarda, Progress in Theoretical Physics Supplement 162, 18 (2006); A. Pluchino, V. Latora, A. Rapisarda, Physica A 338, 60 (2004); A. Rapisarda, A. Pluchino, Europhysics News 36, 202 (2005).",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-11-11T16:49:21.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "05.45.-a",
      "05.20.-y",
      "02.50.Cw"
    ],
    "keywords": [
      "hamiltonian mean field model",
      "normal diffusion",
      "out-of-equilibrium dynamics",
      "single-particle diffusion",
      "quasi-stationary states"
    ],
    "tags": [
      "conference paper",
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2007AIPC..965..122A"
    }
  }
}