{
  "id": "1008.4314",
  "version": "v2",
  "published": "2010-08-25T16:49:59.000Z",
  "updated": "2010-08-31T09:47:57.000Z",
  "title": "Entanglement entropy of round spheres",
  "authors": [
    "Sergey N. Solodukhin"
  ],
  "comment": "11 pages, no figures, minor modification",
  "journal": "Phys.Lett.B693:605-608,2010",
  "doi": "10.1016/j.physletb.2010.09.018",
  "categories": [
    "hep-th",
    "cond-mat.stat-mech",
    "gr-qc"
  ],
  "abstract": "We propose that the logarithmic term in the entanglement entropy computed in a conformal field theory for a $(d-2)$-dimensional round sphere in Minkowski spacetime is identical to the logarithmic term in the entanglement entropy of extreme black hole. The near-horizon geometry of the latter is $H_2\\times S_{d-2}$. For a scalar field this proposal is checked by direct calculation. We comment on relation of this and earlier calculations to the ``brick wall'' model of 't Hooft. The case of generic 4d conformal field theory is discussed.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2010-08-31T09:47:57.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "entanglement entropy",
      "generic 4d conformal field theory",
      "logarithmic term",
      "extreme black hole",
      "dimensional round sphere"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "journal": "Physics Letters B",
      "year": 2010,
      "month": "Oct",
      "volume": 693,
      "number": 5,
      "pages": 605
    },
    "note": {
      "typesetting": "TeX",
      "pages": 11,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 866168,
      "adsabs": "2010PhLB..693..605S"
    }
  }
}