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Einstein gravity on the codimension 2 brane ?

Bostock, P. and Gregory, R. and Navarro, I.. and Santiago, J. (2004) 'Einstein gravity on the codimension 2 brane ?', Physical review letters., 92 . p. 221601.


We look at general brane worlds in six-dimensional Einstein-Gauss-Bonnet gravity. We find the general matching conditions for the brane world, which remarkably give precisely the four-dimensional Einstein equations for the brane, even when the extra dimensions are noncompact and have infinite volume. Relaxing regularity of the curvature in the vicinity of the brane, or having a thick brane, gives rise to an additional term containing information on the brane's embedding in the bulk. We comment on the relevance of these results to a possible solution of the cosmological constant problem.

Item Type:Article
Keywords:Cosmological constant, Hierarchy problem, Dimensions, Supergravity, Millimeter, Space.
Full text:(NA) Not Applicable
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Publisher statement:© 2004 by The American Physical Society. All rights reserved.
Record Created:28 Apr 2008
Last Modified:05 Aug 2011 12:48

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