Viscous Cosmologies with Extra Dimensions

Details Viscous Cosmologies with Extra Dimensions Viscous Cosmologies with Extra Dimensions

2001-06-08

arxiv.org/abs/gr-qc/0106031v2

Phys.Rev.D64:027302,2001

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 latex pages, no figures, accepted in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.64.027302

We present an analysis of a n-dimensional vacuum Einstein field equations in which 4-dimensional space-time which is described by a Friedmann Robertson-Walker (FRW) metric and that of the extra dimensions by a Kasner type Euclidean metric. The field equations are interpreted as four dimensional Einstein equations with effective matter properties. We obtain solutions for the cases when the effective matter is described by imperfect fluid. We consider the theories of imperfect fluid given by Eckart, truncated Israel-Stewart and full Israel-Stewart theories and obtain cosmological solutions for a flat model of the universe.

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