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Paper detail

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

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.

preprint2008arXivOpen access
Orfeu BertolamiCarla CarvalhoJoao Laia
hep-th
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Orfeu BertolamiCarla CarvalhoJoao Laia

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