{
  "id": "1304.3181",
  "version": "v3",
  "published": "2013-04-11T02:52:41.000Z",
  "updated": "2013-08-24T05:47:49.000Z",
  "title": "Noether current from surface term, Virasoro algebra and black hole entropy in bigravity",
  "authors": [
    "Taishi Katsuragawa",
    "Shin'ichi Nojiri"
  ],
  "comment": "7 pages, version to appear in Physical Review D",
  "journal": "Phys. Rev. D 87 (2013) 104032",
  "doi": "10.1103/PhysRevD.87.104032",
  "categories": [
    "hep-th",
    "gr-qc"
  ],
  "abstract": "We consider the static, spherically symmetric black hole solutions in bigravity theory for minimal model with a condition $f_{\\mu \\nu} = C^{2} g_{\\mu \\nu}$ and evaluate the entropy for black holes. In this condition, we show that there exists the Schwarzschild solution for $C^{2} = 1$, which is unique consistent solution. We examine how the massive spin-2 field contributes and affects to the Bekenstein-Hawking entropy corresponding to Einstein gravity. In order to obtain the black hole entropy, we use a recently proposed approach which use Virasoro algebra and central charge corresponding to surface term in the gravitational action.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2013-08-24T05:47:49.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "04.60.-m",
      "04.62.+v"
    ],
    "keywords": [
      "black hole entropy",
      "virasoro algebra",
      "surface term",
      "noether current",
      "spherically symmetric black hole solutions"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2013,
      "month": "May",
      "volume": 87,
      "number": 10,
      "pages": 104032
    },
    "note": {
      "typesetting": "TeX",
      "pages": 7,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1227929,
      "adsabs": "2013PhRvD..87j4032K"
    }
  }
}