{
  "id": "cond-mat/0112429",
  "version": "v2",
  "published": "2001-12-23T15:32:56.000Z",
  "updated": "2002-01-27T10:05:19.000Z",
  "title": "Quantum discrete $φ^4$ model at finite temperatures: the mean-field phase diagram",
  "authors": [
    "V. V. Savkin",
    "A. N. Rubtsov"
  ],
  "comment": "3 figures, figures were changed",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "The quantum discrete $\\phi ^4$ model at finite temperature is studied in the mean-field approximation. The phase diagrams are obtained for a wide range of the model parameters. The domains of applicability for the classical, quantum, and order-disorder limits are determined. It is shown that a remarkable part of the phase diagram is reproduced by the first quantum correction to the classical result. Parameters of Sn$_2$P$_2$S$_6$, SrTiO$_3$, and KH$_2$PO$_4$ are placed in the phase diagram of the model.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2002-01-27T10:05:19.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "mean-field phase diagram",
      "finite temperature",
      "quantum discrete",
      "first quantum correction",
      "model parameters"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 568926,
      "adsabs": "2001cond.mat.12429S"
    }
  }
}