Issue
EPL
Volume 87, Number 6, September 2009
Article Number 69001
Number of page(s) 6
Section Geophysics, Astronomy and Astrophysics
DOI http://dx.doi.org/10.1209/0295-5075/87/69001
Published online 25 September 2009
EPL, 87 (2009) 69001
DOI: 10.1209/0295-5075/87/69001

Phantom-like behavior with curvature effect and modified induced gravity

K. Nozari1 and N. Alipour2

1   Department of Physics, Faculty of Basic Sciences, University of Mazandaran - P.O. Box 47416-95447, Babolsar, Iran
2   Department of Physics, Ferdowsi University of Mashhad - P.O. Box 1436, Mashhad, Iran

knozari@umz.ac.ir

received 3 September 2009; accepted in final form 10 September 2009; published September 2009
published online 25 September 2009

Abstract
It has been shown recently that phantom-like behavior of $\Lambda $DGP scenario can be extended by incorporation of the curvature effect via inclusion of the Gauss-Bonnet term in the bulk action. It is possible also to realize self-acceleration on the normal branch of the DGP scenario by modification of the induced gravity on the brane in the spirit of f(R) gravity. The purpose of the present study is to treat these issues in a unified manner: we study the phantom-like nature of a modified induced gravity in the presence of the Gauss-Bonnet effect.

PACS
98.80.-k - Cosmology.
95.36.+x - Dark energy.
98.80.Cq - Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.).

© EPLA 2009