Affiliation:
1. Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, MA 02139-4307, USA
Abstract
We study the fluctuation spectrum of linearized gravity around non-fine-tuned branes. We focus on the case of an AdS 4 brane in AdS 5. In this case, for small cosmological constant, the warp factor near the brane is essentially that of a Minkowski brane. However, far from the brane, the metric differs substantially. The space includes the AdS 5 boundary, so it has infinite volume. Nonetheless, for sufficiently small AdS 4 cosmological constant, there is a bound state graviton in the theory, and four-dimensional gravity is reproduced. However, it is a massive bound state that plays the role of the four-dimensional graviton.
Publisher
World Scientific Pub Co Pte Lt
Subject
Astronomy and Astrophysics,Nuclear and High Energy Physics,Atomic and Molecular Physics, and Optics
Cited by
15 articles.
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