Full causal bulk viscous LRS Bianchi I with time varying constants

Details Full causal bulk viscous LRS Bianchi I with time varying constants Full causal bulk viscous LRS Bianchi I with time varying constants

2004-10-15

arxiv.org/abs/gr-qc/0410065v2

Astrophys.Space Sci. 299 (2005) 341-368

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

29 pages, 24 figures

Scientific paper

10.1007/s10509-005-3424-4

In this paper we study the evolution of a LRS Bianchi I Universe, filled with a bulk viscous cosmological fluid in the presence of time varying constants "but" taking into account the effects of a c-variable into the curvature tensor. We find that the only physical models are those which ``constants'' $G$ and $c$ are growing functions on time $t$, while the cosmological constant $\Lambda$ is a negative decreasing function. In such solutions the energy density obeys the ultrastiff matter equation of state i.e. $\omega=1$.

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