Brane Cosmology with a Non-Minimally Coupled Bulk-Scalar Field

Abstract

We consider the cosmological evolution of a brane in the presence of a bulk scalar field coupled to the Ricci scalar through a term f(ϕ)R. We derive the generalized Friedmann equation on the brane in the presence of arbitrary brane and bulk-matter, as well as the scalar field equation, allowing for a general scalar potential V(phi). We focus on a quadratic form of the above non-minimal coupling and obtain a class of late-time solutions for the scale factor and the scalar field on the brane that exhibit accelerated expansion for a range of the non-minimal coupling parameter.

15 pages

References in corpus (2)

• Brane Models with a Ricci-Coupled Scalar Field
• Second Randall-Sundrum brane world scenario with a nonminimally coupled bulk scalar field

Cited by in corpus (2)

• Braneworld models with a non-minimally coupled phantom bulk field: a simple way to obtain the -1-crossing at late times
• Mass gap for gravity localized on Weyl thick branes