A new source for a braneworld cosmological constant from a modified gravity model in the bulk

Details A new source for a braneworld cosmological constant from a modified gravity model in the bulk A new source for a braneworld cosmological constant from a modified gravity model in the bulk

2008-05-11

arxiv.org/abs/0805.1546v1

Nucl.Phys.B807:56-72,2009

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

10.1016/j.nuclphysb.2008.08.009

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.

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