STANDARD COSMOLOGY: CAUSAL HOMOGENIZATION CONDITION AND ENERGY DISSIPATION

Author:

CHALLANE-TLEMSANI SOFIANE1,DENMAT GÉRARD LE12

Affiliation:

1. Groupe de Recherche en Astronomie et Astrophysique du Languedoc, Université Montpellier II, place Eugène Bataillon 34095, Montpellier, France

2. Laboratoire “Gravitation et cosmologie relativiste”, Université Pierre et Marie Curie, Tour 22–12, quatrième étage, 4, place Jussieu, 75252 Paris Cedex 05, France

Abstract

The effect of a transient dissipative phase, during the early evolution of the cosmic fluid, is investigated in the framework of the Extended Irreversible Thermodynamics. The role played by the bulk viscosity is considered in the case of a spatially flat Friedmann-Robertson-Walker model, and we discuss a solution which allows the condition of causal homogenization of a hypersurface t=constant to be satisfied.

Publisher

World Scientific Pub Co Pte Lt

Subject

Space and Planetary Science,Astronomy and Astrophysics,Mathematical Physics

Cited by 4 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. VISCOUS COSMOLOGICAL MODELS IN (1 + 1) DIMENSIONS;International Journal of Modern Physics D;1998-08

2. HIGHER DERIVATIVE THEORY WITH VISCOSITY;International Journal of Modern Physics D;1998-08

3. Recent Bibliography on Extended Irreversible Thermodynamics and Related Topics (1995—1998);Journal of Non-Equilibrium Thermodynamics;1998

4. Wavefront velocities in a cosmic fluid with bulk viscosity and matter creation;Classical and Quantum Gravity;1996-11-01

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