A new source for a braneworld cosmological constant from a modified gravity model in the bulk
High Energy Physics - Theory
2010-05-28 v1
Abstract
We show that a four-dimensional equation of state for a cosmological constant term arises from a perfect fluid in the bulk in the context of a gravity model where the scalar curvature is non-minimally coupled to the perfect fluid Lagrangian density. The four-dimensional theory is fully determined from the induced equations on the brane, subject to the boundary conditions derived across the brane.
Cite
@article{arxiv.0805.1546,
title = {A new source for a braneworld cosmological constant from a modified gravity model in the bulk},
author = {Orfeu Bertolami and Carla Carvalho and Joao Laia},
journal= {arXiv preprint arXiv:0805.1546},
year = {2010}
}