Quintic quasi-topological gravity

Understand

We construct a quintic quasi-topological gravity in five dimensions, i.e.

• a theory with a Lagrangian containing $\mathcal{R}^5$ terms and whose field equations are of second order on spherically (hyperbolic or planar) symmetric spacetimes.
• These theories have recently received attention since when formulated on asymptotically AdS spacetimes might provide for gravity duals of a broad class of CFTs.
• For simplicity we focus on five dimensions.