{
  "id": "1706.04063",
  "version": "v1",
  "published": "2017-06-10T07:18:00.000Z",
  "updated": "2017-06-10T07:18:00.000Z",
  "title": "Observational Constraints on Varying Alpha in $Λ(α)$CDM Cosmology",
  "authors": [
    "Hao Wei",
    "Dong-Ze Xue"
  ],
  "comment": "14 pages, 5 figures, 1 table, revtex4. arXiv admin note: text overlap with arXiv:1605.04571",
  "categories": [
    "gr-qc",
    "astro-ph.CO",
    "hep-th"
  ],
  "abstract": "In this work, we consider the so-called $\\Lambda(\\alpha)$CDM cosmology with $\\Lambda\\propto\\alpha^{-6}$ while the fine-structure \"constant\" $\\alpha$ is varying. In this scenario, the accelerated expansion of the universe is driven by the cosmological \"constant\" $\\Lambda$ (equivalently the vacuum energy), and the varying $\\alpha$ is driven by a subdominant scalar field $\\phi$ coupling with the electromagnetic field. The observational constraints on the varying $\\alpha$ and $\\Lambda\\propto\\alpha^{-6}$ models with various couplings $B_F(\\phi)$ between the subdominant scalar field $\\phi$ and the electromagnetic field are considered.",
  "revisions": [
    {
      "version": "v1",
      "updated": "2017-06-10T07:18:00.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "cdm cosmology",
      "observational constraints",
      "varying alpha",
      "subdominant scalar field",
      "electromagnetic field"
    ],
    "note": {
      "typesetting": "RevTeX",
      "pages": 14,
      "language": "en",
      "license": "arXiv",
      "status": "editable"
    }
  }
}