{
  "id": "hep-th/9902088",
  "version": "v2",
  "published": "1999-02-11T21:16:04.000Z",
  "updated": "1999-02-18T00:31:11.000Z",
  "title": "Holography, Cosmology and the Second Law of Thermodynamics",
  "authors": [
    "Richard Easther",
    "David A. Lowe"
  ],
  "comment": "Latex, 12 pages (v2: reference added)",
  "journal": "Phys.Rev.Lett. 82 (1999) 4967-4970",
  "doi": "10.1103/PhysRevLett.82.4967",
  "categories": [
    "hep-th"
  ],
  "abstract": "We propose that in time dependent backgrounds the holographic principle should be replaced by the generalized second law of thermodynamics. For isotropic open and flat universes with a fixed equation of state, the generalized second law agrees with the cosmological holographic principle proposed by Fischler and Susskind. However, in more complicated spacetimes the two proposals disagree. A modified form of the holographic bound that applies to a post-inflationary universe follows from the generalized second law. However, in a spatially closed universe, or inside a black hole event horizon, there is no simple relationship that connects the area of a region to the maximum entropy it can contain.",
  "revisions": [
    {
      "version": "v2",
      "updated": "1999-02-18T00:31:11.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "thermodynamics",
      "holography",
      "black hole event horizon",
      "time dependent backgrounds",
      "generalized second law agrees"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Phys. Rev. Lett."
    },
    "note": {
      "typesetting": "LaTeX",
      "pages": 12,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 495238
    }
  }
}