Brane Cosmological Evolution With Bulk Matter
arXiv:hep-th/0609100 · doi:10.1016/j.physletb.2007.01.009
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.
11 Pages
Cited by in corpus (15)
- Searching Exact Solutions for Compact Stars in Braneworld: a conjecture
- Braneworld models with a non-minimally coupled phantom bulk field: a simple way to obtain the -1-crossing at late times
- Degenerate and critical Bloch branes
- Non-uniform Braneworld Stars: an Exact Solution
- Chaplygin DGP cosmologies
- String inspired explanation for the super-acceleration of our universe
- Phantom-like behaviour in a brane-world model with curvature effects
- The transition of equation of state of effective dark energy in the DGP model with bulk contents
- Dark energy from bulk matter
- Modified brane cosmologies with induced gravity, arbitrary matter content and a Gauss-Bonnet term in the bulk
- Observational constraints on the braneworld model with brane-bulk energy exchange
- Localizing gravity on thick branes: a solution for massive KK modes of the Schroedinger equation
- 7D Randall-Sundrum cosmology, brane-bulk energy exchange and holography
- The nature of cosmological singularities in isotropic universes and braneworlds
- Cosmic Acceleration Data and Bulk-Brane Energy Exchange