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Full causal bulk viscous LRS Bianchi I with time varying constants | | J. A. Belinchón
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15 Oct 2004 | | Journal: | Astrophys.Space Sci. 299 (2005) 341-368 | | Subject: | gr-qc | | Abstract: | 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. $omega=1$. | | Source: | arXiv, gr-qc/0410065 | | Services: | Forum | Review | PDF | Favorites | |
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