# Brane-World Gravity

@article{Maartens2010BraneWorldG, title={Brane-World Gravity}, author={Roy Maartens and Kazuya Koyama}, journal={Living Reviews in Relativity}, year={2010}, volume={13} }

The observable universe could be a 1+3-surface (the “brane”) embedded in a 1+3+d-dimensional spacetime (the “bulk”), with Standard Model particles and fields trapped on the brane while gravity is free to access the bulk. At least one of the d extra spatial dimensions could be very large relative to the Planck scale, which lowers the fundamental gravity scale, possibly even down to the electroweak (∼ TeV) level. This revolutionary picture arises in the framework of recent developments in M…

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