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Paper   IPM / Physic / 15304
School of Physics
  Title:   Conformal Chern-Simons holography - lock, stock and barrel
  Author(s): 
1.  H.R. Afshar
2.  B. Cvetkovic
3.  S. Ertl
4.  D. Grumiller
5.  N. Johansson
  Status:   Published
  Journal: Phys. Rev. D
  Vol.:  85
  Year:  2012
  Pages:   064033
  Supported by:  IPM
  Abstract:
We discuss a fine-tuning of rather generic three dimensional higher-curvature gravity actions that leads to gauge symmetry enhancement at the linearized level via partial masslessness. Requiring this gauge symmetry to be present also non-linearly reduces such actions to conformal Chern-Simons gravity. We perform a canonical analysis of this theory and construct the gauge generators and associated charges. We provide and classify admissible boundary conditions. The boundary conditions on the conformal equivalence class of the metric render one chirality of the partially massless Weyl gravitons normalizable and the remaining one non-normalizable. There are three choices - trivial, fixed or free - for the Weyl factors of the bulk metric and of the boundary metric. This proliferation of boundary conditions leads to various physically distinct scenarios of holography that we study in detail, extending considerably the discussion initiated in 1106.6299. In particular, the dual CFT may contain an additional scalar field with or without background charge, depending on the choices above.

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