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    • Keywords


      Cosmological models; particle production; higher derivative theory of gravitation

    • Abstract


      The effect of particle production on the evolution of the spatially flat Friedmann-Lemaitre-Robertson-Walker cosmological model during the early stages of the universe is analysed in the framework of higher derivative theory. The universe has been considered as an open thermodynamic system where particle production gives rise to a supplementary negative creation pressure in addition to the thermodynamic pressure. The dynamical behaviour of both exponential as well as power law solutions have been discussed.

    • Author Affiliations


      G P Singh1 2 A Beesham1 2 R V Deshpande1 3

      1. Department of Mathematics, Visvesvaraya Regional College of Engineering, Nagpur - 440 011, India
      2. Department of Applied Mathematics, University of Zululand, Private Bag X1001, Kwa-Dlangezwa - 3886, South Africa
      3. Department of Mathematics, Priyadarshini College of Engineering and Architecture, Nagpur
    • Dates

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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