Phantom-like behavior with curvature effect and modified induced gravityK. 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
received 3 September 2009; accepted in final form 10 September 2009; published September 2009
published online 25 September 2009
It has been shown recently that phantom-like behavior of 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.
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