Abstract
We argue that the Karch-Randall compactification is holographically dual to a 4D conformal field theory coupled to gravity on anti-de Sitter space. Using this interpretation we recover the mass spectrum of the model. In particular, we find no massless spin-2 states. By giving a purely 4D interpretation to the compactification we make clear that it represents the first example of a local 4D field theory in which general covariance does not imply the existence of a massless graviton. We also discuss some variations of the Karch-Randall model discussed in the literature, and we examine whether its properties are generic to all conformal field theory.
Original language | English (US) |
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Article number | 044015 |
Journal | Physical Review D |
Volume | 65 |
Issue number | 4 |
DOIs | |
State | Published - 2002 |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)