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.
|Keywords:||Cosmological constant, Hierarchy problem, Dimensions, Supergravity, Millimeter, Space.|
|Full text:||PDF - Other (119Kb)|
|Publisher Web site:||http://dx.doi.org/10.1103/PhysRevLett.92.221601|
|Publisher statement:||© 2004 by The American Physical Society. All rights reserved.|
|Record Created:||28 Apr 2008|
|Last Modified:||05 Aug 2011 12:48|
|Social bookmarking:||Export: EndNote, Zotero | BibTex|
|Usage statistics||Look up in GoogleScholar | Find in a UK Library|