{
  "id": "cond-mat/0207694",
  "version": "v2",
  "published": "2002-07-30T05:57:17.000Z",
  "updated": "2002-09-25T01:17:56.000Z",
  "title": "Energy fluctuations at the multicritical point in two-dimensional spin glasses",
  "authors": [
    "Hidetoshi Nishimori",
    "Cyril Falvo",
    "Yukiyasu Ozeki"
  ],
  "comment": "9 pages, 7 figures; Note added",
  "journal": "J. Phys. A 35 (2002) 8171",
  "doi": "10.1088/0305-4470/35/39/303",
  "categories": [
    "cond-mat.dis-nn",
    "cond-mat.stat-mech"
  ],
  "abstract": "We study the two-dimensional +/-J Ising model, three-state Potts model and four-state Potts model, by the numerical transfer matrix method to investigate the behaviour of the sample-to-sample fluctuations of the internal energy on the Nishimori line. The result shows a maximum at the multicritical point in all the models we investigated. The large sample-to-sample fluctuations of the internal energy as well as the existence of a singularity in these fluctuations imply that the bond configuration (or, equivalently, the distribution of frustrated plaquettes) may be experiencing a non-trivial change of its behaviour at the multicritical point. This observation is consistent with the picture that the phase transition at the multicritical point is of geometry-induced nature.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2002-09-25T01:17:56.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "multicritical point",
      "two-dimensional spin glasses",
      "energy fluctuations",
      "internal energy",
      "numerical transfer matrix method"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 9,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}