{
  "id": "cond-mat/0105609",
  "version": "v1",
  "published": "2001-05-31T08:55:12.000Z",
  "updated": "2001-05-31T08:55:12.000Z",
  "title": "Finite-size effects on the Hamiltonian dynamics of the XY-model",
  "authors": [
    "S. Lepri",
    "S. Ruffo"
  ],
  "comment": "To be published in Europhysics Letters",
  "journal": "Europhys. Lett. 55, 512 (2001).",
  "doi": "10.1209/epl/i2001-00445-5",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "The dynamical properties of the finite-size magnetization M in the critical region T<T_{KTB} of the planar rotor model on a L x L square lattice are analyzed by means of microcanonical simulations . The behavior of the q=0 structure factor at high frequencies is consistent with field-theoretical results, but new additional features occur at lower frequencies. The motion of M determines a region of spectral lines and the presence of a central peak, which we attribute to phase diffusion. Near T_{KTB} the diffusion constant scales with system size as D ~ L^{-1.6(3)}.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2001-05-31T08:55:12.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "hamiltonian dynamics",
      "finite-size effects",
      "diffusion constant scales",
      "planar rotor model",
      "additional features occur"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}