{
  "id": "1006.0196",
  "version": "v2",
  "published": "2010-06-01T17:42:52.000Z",
  "updated": "2010-11-30T08:06:12.000Z",
  "title": "One-loop corrections to the power spectrum in general single-field inflation",
  "authors": [
    "Nicola Bartolo",
    "Emanuela Dimastrogiovanni",
    "Alberto Vallinotto"
  ],
  "comment": "39 pages, 5 figures, version accepted for publication in JCAP, added references for sections 2 and 3",
  "journal": "JCAP 1011:003,2010",
  "doi": "10.1088/1475-7516/2010/11/003",
  "categories": [
    "astro-ph.CO",
    "gr-qc",
    "hep-ph",
    "hep-th"
  ],
  "abstract": "We perform a thorough computation of the one-loop corrections from both scalar and tensor degrees of freedom to the power spectrum of curvature fluctuations for non-canonical Lagrangians in single-field inflation. We consider models characterized by a small sound speed c_{s}, which produce large non-Gaussianities. As expected, the corrections turn out to be inversely proportional to powers of c_{s}; evaluating their amplitudes it is then possible to derive some theoretical bounds on the sound speed by requesting the conditions necessary for perturbation theory to hold.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2010-11-30T08:06:12.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "general single-field inflation",
      "power spectrum",
      "one-loop corrections",
      "produce large non-gaussianities",
      "curvature fluctuations"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "publisher": "IOP",
      "journal": "Journal of Cosmology and Astro-Particle Physics",
      "year": 2010,
      "month": "Nov",
      "volume": 2010,
      "number": 11,
      "pages": "003"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 39,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 856784,
      "adsabs": "2010JCAP...11..003B"
    }
  }
}