{
  "id": "hep-th/0411152",
  "version": "v1",
  "published": "2004-11-16T17:40:46.000Z",
  "updated": "2004-11-16T17:40:46.000Z",
  "title": "Semiclassical Universe from First Principles",
  "authors": [
    "J. Ambjorn",
    "J. Jurkiewicz",
    "R. Loll"
  ],
  "comment": "15 pages, 4 figures",
  "journal": "Phys.Lett. B607 (2005) 205-213",
  "doi": "10.1016/j.physletb.2004.12.067",
  "categories": [
    "hep-th",
    "astro-ph",
    "gr-qc"
  ],
  "abstract": "Causal Dynamical Triangulations in four dimensions provide a background-independent definition of the sum over space-time geometries in nonperturbative quantum gravity. We show that the macroscopic four-dimensional world which emerges in the Euclidean sector of this theory is a bounce which satisfies a semiclassical equation. After integrating out all degrees of freedom except for a global scale factor, we obtain the ground state wave function of the universe as a function of this scale factor.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2004-11-16T17:40:46.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "first principles",
      "semiclassical universe",
      "ground state wave function",
      "global scale factor",
      "macroscopic four-dimensional world"
    ],
    "tags": [
      "journal article"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 15,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 664646
    }
  }
}