Viscoelastic effects in cosmological expansion

Details Viscoelastic effects in cosmological expansion Viscoelastic effects in cosmological expansion

Apr 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993phla..175..395z&link_type=abstract

Physics Letters A, Volume 175, Issue 6, p. 395-396.

Physics

10

Scientific paper

When viscous effects are considered in the analysis of relativistic systems, viscoelastic effects should be included in order to avoid a propagation of viscous signals with infinite speed. In this paper, the influence of such viscoelastic effects on the evolution of a Friedmann-Robertson-Walker universe is studied. In the limit of strong viscoelastic effects the dependence of the scale factor R with t is given by different exponents than in the situation when bulk viscous pressure is completely ignored.
Fellow of the Institut d'Estudis Catalans.

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