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

  • V. A. Berezin


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.


Coherent State Cosmological Model Einstein Equation Entropy Production Particle Production 
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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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