{
  "id": "1410.6977",
  "version": "v1",
  "published": "2014-10-26T01:49:28.000Z",
  "updated": "2014-10-26T01:49:28.000Z",
  "title": "Gravitational Waves: A Test for Modified Gravity",
  "authors": [
    "Lixin Xu"
  ],
  "comment": "6 pages, 7 figures",
  "categories": [
    "astro-ph.CO"
  ],
  "abstract": "In a modified gravity theory, the propagation equation of gravitational waves will be in a non standard way. Therefore, it provides a crucial test on deviation of general relativity. In this paper, we propose a parameterized modification to the propagation of gravitational waves and study its effects on the tensor modes of cosmic microwave polarization B modes and its degeneracy to the tensor mode power spectrum index $n_t$ and its running $\\alpha_t$. At last, we reported the current status on the detection to deviation of general relativity through the currently available data sets. Our results showed no significant deviation was probed.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2014-10-26T01:49:28.000Z"
    }
  ],
  "analyses": {
    "subjects": [
      "98.80.-k",
      "95.36.+x",
      "98.80.Es"
    ],
    "keywords": [
      "gravitational waves",
      "modified gravity",
      "tensor mode power spectrum index",
      "general relativity",
      "cosmic microwave polarization"
    ],
    "publication": {
      "doi": "10.1103/PhysRevD.91.103520",
      "journal": "Physical Review D",
      "year": 2015,
      "month": "May",
      "volume": 91,
      "number": 10,
      "pages": 103520
    },
    "note": {
      "typesetting": "TeX",
      "pages": 6,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1324330,
      "adsabs": "2015PhRvD..91j3520X"
    }
  }
}