Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2006-08-14
JHEP0611:049,2006
Physics
High Energy Physics
High Energy Physics - Theory
Latex, 25 pages. (v2) Minor corrections and references added
Scientific paper
10.1088/1126-6708/2006/11/049
The question of graviton cloning in the context of the bulk/boundary correspondence is considered. It is shown that multi-graviton theories can be obtained from products of large-N CFTs. No more than one interacting massless graviton is possible. There can be however, many interacting massive gravitons. This is achieved by coupling CFTs via multi-trace marginal or relevant perturbations. The geometrical structure of the gravitational duals of such theories is that of product manifolds with their boundaries identified. The calculational formalism is described and the interpretation of such theories is discussed.
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