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Gravitational energy in Brans-Dicke cosmological models

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Abstract

The behaviour of gravitational energy and scalar field during the evolution of the universe within the framework of Brans-Dicke theory has been discussed. With help of the Landau-Lifshitz pseudo-tensor for the flat Friedmann-Robertson-Walker model, it is found that (i) the total energy of the universe is always zero, (ii) the Brans-Dicke scalar field for all Ω >-0 contributes energy to the negative energy of gravitational field and this gets transferred to the vacuum energy which accelerates the expansion of the universe.

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Authors and Affiliations

  1. Department of Mathematics and Astronomy, Lucknow University, 226007, Lucknow, India

    V B Johri

  2. Department of Mathematics, Visvesvaraya Regional College of Engineering, Nagpur, India

    G P Singh

Authors
  1. V B Johri
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  2. G P Singh
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Johri, V.B., Singh, G.P. Gravitational energy in Brans-Dicke cosmological models. Pramana - J Phys 52, 121–126 (1999). https://doi.org/10.1007/BF02831489

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  • DOI: https://doi.org/10.1007/BF02831489

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