{
  "id": "cond-mat/9711084",
  "version": "v2",
  "published": "1997-11-11T01:41:19.000Z",
  "updated": "1998-03-08T22:50:45.000Z",
  "title": "Quantized circular motion of a trapped Bose-Einstein condensate: coherent rotation and vortices",
  "authors": [
    "Karl-Peter Marzlin",
    "Weiping Zhang"
  ],
  "comment": "13 Pages, 5 Figures, RevTex",
  "journal": "Phys. Rev. A. 57, 4761 (1998)",
  "doi": "10.1103/PhysRevA.57.4761",
  "categories": [
    "cond-mat.stat-mech",
    "quant-ph"
  ],
  "abstract": "We study the creation of vortex states in a trapped Bose-Einstein condensate by a rotating force. For a harmonic trapping potential the rotating force induces only a circular motion of the whole condensate around the trap center which does not depend on the interatomic interaction. For the creation of a pure vortex state it is necessary to confine the atoms in an anharmonic trapping potential. The efficiency of the creation can be greatly enhanced by a sinusodial variation of the force's angular velocity. We present analytical and numerical calculations for the case of a quartic trapping potential. The physical mechanism behind the requirement of an anharmonic trapping potential for the creation of pure vortex states is explained. [Changes: new numerical and analytical results are added and the representation is improved.]",
  "revisions": [
    {
      "version": "v2",
      "updated": "1998-03-08T22:50:45.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "trapped bose-einstein condensate",
      "quantized circular motion",
      "coherent rotation",
      "pure vortex state",
      "anharmonic trapping potential"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. A"
    },
    "note": {
      "typesetting": "RevTeX",
      "pages": 13,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}