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arXiv · hep-th/0609100

Brane Cosmological Evolution With Bulk Matter

C. Bogdanos·K. Tamvakis
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Abstract

We consider the cosmological evolution of a brane for general bulk matter content. In our setup the bulk pressure and the energy exchange densities are comparable to the brane energy density. Adopting a phenomenological fluid ansatz and generalizations of it, we derive a set of exact solutions of the Friedmann equation that exhibit accelerated expansion. We find that the effective equation of state parameter for the dark energy can exhibit w=-1 crossing without the presence of exotic matter.

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C. Bogdanos, K. Tamvakis. 2006-09-14. Brane Cosmological Evolution With Bulk Matter. https://doi.org/10.1016/j.physletb.2007.01.009

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