Crossing the Cosmological Constant Line on a Warped DGP Brane

Details Crossing the Cosmological Constant Line on a Warped DGP Brane Crossing the Cosmological Constant Line on a Warped DGP Brane

2008-08-03

arxiv.org/abs/0808.0318v3

Prog.Theor.Phys.122:735-754,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

28 pages, 8 figures, 2 tables, revised version to appear in Prog. Theor. Phys

Scientific paper

10.1143/PTP.122.735

We study dynamics of the equation of state parameter for a dark energy component non-minimally coupled to induced gravity on a warped DGP brane. We show that there are appropriate domains of the model parameters space that account for crossing of the phantom divide line. This crossing, which is possible for both branches of the scenario, depends explicitly on the values of the non-minimal coupling and warp factor. The effect of warp factor appears in the value of the redshift parameter at which phantom divide line crossing occurs.

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