• Gaussian states in de Sitter spacetime and the evolution of semiclassical density perturbations. - 1. Homogeneous mode

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      https://www.ias.ac.in/article/fulltext/joaa/010/04/0391-0406

    • Keywords

       

      cosmology; early universe; density perturbations

    • Abstract

       

      The evolution of Gaussian quantum states in the de Sitter phase of the early universe is investigated. The potential is approximated by that of an inverted oscillator. We study the origin and magnitude of the density perturbations with special emphasis on the nature of the semiclassical limits

    • Author Affiliations

       

      T. R. Seshadri1 T. Padmanabhan1

      1. Astrophysics Group, Tata Institute of Fundamental Research, Homi Bhabha Road, Bombay - 400005
    • Dates

       
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