{
  "id": "cond-mat/0701236",
  "version": "v1",
  "published": "2007-01-11T09:01:49.000Z",
  "updated": "2007-01-11T09:01:49.000Z",
  "title": "Bogolyubov approximation for diagonal model of an interacting Bose gas",
  "authors": [
    "M. Corgini",
    "D. P. Sankovich"
  ],
  "journal": "Physics Letters A, vol.360,issue 3,2007,p.419-422",
  "doi": "10.1016/j.physleta.2006.07.021",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "We study, using the Bogolyubov approximation, the thermodynamic behaviour of a superstable Bose system whose energy operator in the second-quantized form contains a nonlinear expression in the occupation numbers operators. We prove that for all values of the chemical potential satisfying $\\mu > \\lambda(0)$, where $\\lambda (0)\\leq 0$ is the lowest energy value, the system undergoes Bose--Einstein condensation.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-01-11T09:01:49.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "interacting bose gas",
      "bogolyubov approximation",
      "diagonal model",
      "system undergoes bose-einstein condensation",
      "lowest energy value"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}