Conformal Chern-Simons holography - lock, stock and barrel

Understand

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.