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Can De Sitter Spacetime be a Final State of the Contracting Universe?

  • V. A. Berezin

Abstract

It is shown that a equilibrium thermodynamic description of the matter in cosmological models leads to the absence of particle creation. It is proposed to take into account these non-equilibrium processes by introducing a new additional thermodynamic variable, namely explicit time dependence of all thermodynamic potentials into the thermodynamic relations. It is shown that this trick leads to “softening” of the equation of state. It is demonstrated, using a model equation of state, that during a cosmological contraction a de Sitter spacetime may be produced.

Keywords

Coherent State Cosmological Model Einstein Equation Entropy Production Particle Production 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Press, New York 1984

Authors and Affiliations

  • V. A. Berezin
    • 1
  1. 1.Institute for Nuclear Research of the Academy Sciences of the USSRUSSR

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