| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10725968 | Physics Letters B | 2007 | 8 Pages |
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=â1 crossing without the presence of exotic matter.
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Authors
C. Bogdanos, K. Tamvakis,