Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2011-06-30
Physics
High Energy Physics
High Energy Physics - Theory
5 p
Scientific paper
We show that conformal Chern-Simons gravity in three dimensions has various holographic descriptions. They depend on the boundary conditions on the conformal equivalence class and the Weyl factor, even when the former is restricted to asymptotic Anti-deSitter behavior. For constant or fixed Weyl factor our results agree with a suitable scaling limit of topologically massive gravity results. For varying Weyl factor we find an enhancement of the asymptotic symmetry group, the details of which depend on certain choices. We focus on a particular example where an affine u(1) algebra related to holomorphic Weyl rescalings shifts one of the central charges by 1. The Weyl factor then behaves as a free chiral boson in the dual conformal field theory.
Afshar Hamid
Cvetković Branislav
Ertl Sabine
Grumiller Daniel
Johansson Niklas
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