GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS: Phantom-Like Effects on Warped DGP Brane

Details GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS: Phantom-Like Effects on Warped DGP Brane GEOPHYSICS, ASTRONOMY, AND ASTROPHYSICS: Phantom-Like Effects on Warped DGP Brane

Oct 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010cotph..54..773n&link_type=abstract

Communications in Theoretical Physics, Volume 54, Issue 4, pp. 773-780 (2010).

Physics

1

Scientific paper

We study phantom-like effect on the DGP brane embedded in a five-dimensional AdS bulk. We show that this effect can be realized without phantom matter on this warped DGP brane. We investigate the role played by the bulk cosmological constant on the phantom-like effect on the brane and we show that it tends to reduce this effect. Also, warped compactification of the bulk manifold increases the values of the effective and total equation of state parameters of the model relative to the case with Minkowski bulk. We extend our study to the case that induced curvature on the brane is modified in the spirit of the f(R)-gravity.

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