TY - JOUR
T1 - Mass and gauge invariance
T2 - Holography for the Karch-Randall model
AU - Porrati, M.
PY - 2002
Y1 - 2002
N2 - 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.
AB - 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.
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U2 - 10.1103/PhysRevD.65.044015
DO - 10.1103/PhysRevD.65.044015
M3 - Article
AN - SCOPUS:17344382375
SN - 1550-7998
VL - 65
JO - Physical review D: Particles and fields
JF - Physical review D: Particles and fields
IS - 4
M1 - 044015
ER -