Higgs Phenomenon for the Graviton in Ads Space

M. Porrati

Published 2003-06-25, updated 2003-08-06Version 2

In this review, we summarize recent findings that show how standard 4-d Einstein gravity coupled to a conformal field theory can become massive in Anti de Sitter Space. Key ingredients in this phenomenon are non-standard ``transparent'' boundary condition given to the CFT fields and the fact that AdS space is not globally hyperbolic, due to the presence of a time-like boundary.