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Effects of second viscosity in cosmology

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Abstract

It is shown that in homogeneous cosmological models which take viscosity into account there exist solutions realizing an interpolation between the Friedmann and stationary (steady-state) regimes. In a closed model a solution is obtained which corresponds to the regime of “compensation of curvature” (with radius increasing without bound). The problem of compensation of the singularity as t → 0 and also the choice of equations of state for early (hadron) stages of cosmological evolution in connection with the hydrodynamical theory of multiple creation of hadrons are discussed.

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Authors and Affiliations

  1. V. I. Lenin Belorussian State University, USSR

    A. S. Potupa

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  1. A. S. Potupa
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 1, pp. 92–97, January, 1978.

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Potupa, A.S. Effects of second viscosity in cosmology. Soviet Physics Journal 21, 76–81 (1978). https://doi.org/10.1007/BF00896300

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  • DOI: https://doi.org/10.1007/BF00896300

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