{
  "id": "1205.6877",
  "version": "v3",
  "published": "2012-05-31T03:41:08.000Z",
  "updated": "2012-06-06T16:08:46.000Z",
  "title": "Dynamics and Light Propagation in a Universe with Discrete Matter Content",
  "authors": [
    "Mohamad Shalaby"
  ],
  "comment": "submitted as AIIMS diploma essay at http://archive.aims.ac.za/2010",
  "categories": [
    "gr-qc"
  ],
  "abstract": "We discuss a model for a universe with discrete matter content instead of the continuous perfect fluid taken in FRW models. We show how the redshift in such a universe deviates from the corresponding one in an FRW cosmology. This illustrates the fact that averaging the matter content in a universe and then evolving it in time, is not the same as evolving a universe with discrete matter content. The main reason for such deviation is the fact that the photons in such a universe mainly travel in an empty space rather than the continuous perfect fluid in FRW geometry.",
  "revisions": [
    {
      "version": "v3",
      "updated": "2012-06-06T16:08:46.000Z"
    }
  ],
  "analyses": {
    "keywords": [
      "light propagation",
      "discrete matter content",
      "continuous perfect fluid taken",
      "frw geometry",
      "empty space"
    ],
    "note": {
      "typesetting": "TeX",
      "pages": 0,
      "language": "en",
      "license": "arXiv",
      "status": "editable",
      "inspire": 1116635,
      "adsabs": "2012arXiv1205.6877S"
    }
  }
}