{
  "id": "0712.2991",
  "version": "v1",
  "published": "2007-12-18T16:23:00.000Z",
  "updated": "2007-12-18T16:23:00.000Z",
  "title": "Gravitational Waves From the End of Inflation: Computational Strategies",
  "authors": [
    "Richard Easther",
    "John T. Giblin Jr",
    "Eugene A. Lim"
  ],
  "comment": "15 pages, 13 figures",
  "journal": "Phys.Rev.D77:103519,2008",
  "doi": "10.1103/PhysRevD.77.103519",
  "categories": [
    "astro-ph"
  ],
  "abstract": "Parametric resonance or preheating is a plausible mechanism for bringing about the transition between the inflationary phase and a hot, radiation dominated universe. This epoch results in the rapid production of heavy particles far from thermal equilibrium and could source a significant stochastic background of gravitational radiation. Here, we present a numerical algorithm for computing the contemporary power spectrum of gravity waves generated in this post-inflationary phase transition for a large class of scalar-field driven inflationary models. We explicitly calculate this spectrum for both quartic and quadratic models of chaotic inflation, and low-scale hybrid models. In particular, we consider hybrid models with an ``inverted'' potential. These models have a very short and intense period of resonance which is qualitatively different from previous examples studied in this context, but we find that they lead to a similar spectrum of gravitational radiation.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2007-12-18T16:23:00.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "04.30.Db",
      "98.80.Cq"
    ],
    "keywords": [
      "gravitational waves",
      "computational strategies",
      "scalar-field driven inflationary models",
      "gravitational radiation",
      "heavy particles far"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "APS",
      "journal": "Physical Review D",
      "year": 2008,
      "month": "May",
      "volume": 77,
      "number": 10,
      "pages": 103519
    },
    "note": {
      "typesetting": "TeX",
      "pages": 15,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 770810,
      "adsabs": "2008PhRvD..77j3519E"
    }
  }
}