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      https://www.ias.ac.in/article/fulltext/pram/059/02/0369-0374

    • Keywords

       

      Cosmological parameters; quantum cosmology; uncertainty principle; fundamental constants; gravity

    • Abstract

       

      We present evidence for a nonsingular origin of the Universe with intial conditions determined by quantum physics and relativistic gravity. In particular, we establish that the present temperature of the microwave background and the present density of the Universe agree well with our predictions from these intial conditions, after evolution to the present age using the Einstein-Friedmann equation. Remarkably, the quantum origin for the Universe naturally allows its evolution at exactly the critical density. We also discuss the consequences of these results to some fundamental aspects of quantum physics in the early Universe.

    • Author Affiliations

       

      CS Unnikrishnan1 2 GT Gillies3 RC Ritter4

      1. Gravitation Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai - 400 005, India
      2. NAPP Group, Indian Institute of Astrophysics, Koramangala, Bangalore - 560 034, India
      3. School of Engineering and Applied Science, University of Virginia, Charlottesville, VA - 22904-4746, USA
      4. Department of Physics, University of Virginia, P.O. Box 400714, Charlottesville, Virginia - 22904-4714, USA
    • Dates

       
  • Pramana – Journal of Physics | News

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