{
  "id": "cond-mat/0108041",
  "version": "v2",
  "published": "2001-08-02T14:06:11.000Z",
  "updated": "2001-10-23T12:03:36.000Z",
  "title": "Interacting Bose Gas in an Optical Lattice",
  "authors": [
    "K. Ziegler"
  ],
  "comment": "14 pages, 1 figure",
  "journal": "Journ. Low Temp. Phys. 126, 1431 (2002)",
  "categories": [
    "cond-mat.stat-mech"
  ],
  "abstract": "A grand canonical system of hard-core bosons in an optical lattice is considered. The bosons can occupy randomly $N$ equivalent states at each lattice site. The limit $N\\to\\infty$ is solved exactly in terms of a saddle-point integration, representing a weakly-interacting Bose gas. At T=0 there is only a condensate in the limit $N\\to\\infty$. Corrections in 1/N increase the total density of bosons but suppress the condensate. This indicates a depletion of the condensate due to increasing interaction at finite values of N.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2001-10-23T12:03:36.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "optical lattice",
      "condensate",
      "equivalent states",
      "lattice site",
      "grand canonical system"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "AIP",
      "journal": "Low Temp. Phys."
    },
    "note": {
      "typesetting": "TeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "adsabs": "2001cond.mat..8041Z"
    }
  }
}