{
  "id": "1207.6963",
  "version": "v2",
  "published": "2012-07-30T15:20:00.000Z",
  "updated": "2012-11-07T11:04:12.000Z",
  "title": "Effective action for the Abelian Higgs model in FLRW",
  "authors": [
    "Damien P. George",
    "Sander Mooij",
    "Marieke Postma"
  ],
  "comment": "30 pages, 2 figures; minor changes in second version that matches published version",
  "categories": [
    "hep-th",
    "astro-ph.CO",
    "gr-qc"
  ],
  "abstract": "We compute the divergent contributions to the one-loop action of the U(1) Abelian Higgs model. The calculation allows for a Friedmann-Lemaitre-Robertson-Walker space-time and a time-dependent expectation value for the scalar field. Treating the time-dependent masses as two-point interactions, we use the in-in formalism to compute the first, second and third order graphs that contribute quadratic and logarithmic divergences to the effective scalar action. Working in R-xi gauge we show that the result is gauge invariant upon using the equations of motion.",
  "revisions": [
    {
      "version": "v2",
      "updated": "2012-11-07T11:04:12.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "abelian higgs model",
      "effective action",
      "time-dependent expectation value",
      "third order graphs",
      "gauge invariant"
    ],
    "tags": [
      "journal article"
    ],
    "publication": {
      "doi": "10.1088/1475-7516/2012/11/043",
      "journal": "Journal of Cosmology and Astro-Particle Physics",
      "year": 2012,
      "month": "Nov",
      "volume": 2012,
      "number": 11,
      "pages": "043"
    },
    "note": {
      "typesetting": "TeX",
      "pages": 30,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1124116,
      "adsabs": "2012JCAP...11..043G"
    }
  }
}