Bulk scalar field in DGP braneworld cosmology

Abstract

We investigated the effects of bulk scalar field in the braneworld cosmological scenario. The Friedmann equations and acceleration condition in presence of the bulk scalar field for a zero tension brane and cosmological constant are studied. In DGP model the effective Einstein equation on the brane is obtained with bulk scalar field. The rescaled bulk scalar field on the brane in the DGP model behaves as an effective four dimensional field, thus standard type cosmology is recovered. In present study of the DGP model, the late-time accelerating phase of the universe can be explained .

10 pages, to appear in JCAP

References in corpus (2)

• Modified equation of state, scalar field, and bulk viscosity in Friedmann universe
• Creation of a brane world with a bulk scalar field

Cited by in corpus (5)

• Cosmological braneworld solutions with bulk scalar field in DGP setup
• The five dimensional universal hypermultiplet and the cosmological constant problem
• Bulk scalar field in brane-worlds with induced gravity inspired by the $\mathcal{L}(R)$ term
• Dvali-Gabadadze-Porrati Cosmology in Bianchi I brane
• Quark-Hadron Phase Transition in DGP Brane Gravity with Bulk Scalar Field