Viscoelastic effects in cosmological expansion

Mohamed Zakari; David Jou

doi:https://doi.org/10.1016/0375-9601(93)90989-D

Viscoelastic effects in cosmological expansion

Mohamed Zakari, David Jou

Department of Physics

Research output: Contribution to journal › Article › Research › peer-review

10 Citations (Scopus)

Abstract

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. © 1993.

Original language	English
Pages (from-to)	395-396
Journal	Physics Letters A
Volume	175
DOIs	https://doi.org/10.1016/0375-9601(93)90989-D
Publication status	Published - 26 Apr 1993

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title = "Viscoelastic effects in cosmological expansion",

abstract = "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. {\textcopyright} 1993.",

author = "Mohamed Zakari and David Jou",

year = "1993",

month = apr,

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T1 - Viscoelastic effects in cosmological expansion

AU - Zakari, Mohamed

AU - Jou, David

PY - 1993/4/26

Y1 - 1993/4/26

N2 - 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. © 1993.

AB - 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. © 1993.

U2 - https://doi.org/10.1016/0375-9601(93)90989-D

DO - https://doi.org/10.1016/0375-9601(93)90989-D

M3 - Article

VL - 175

SP - 395

EP - 396

ER -

Viscoelastic effects in cosmological expansion

Abstract

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