Minimal Massive 3D Gravity

Understand

We present an alternative to Topologically Massive Gravity (TMG) with the same "minimal" bulk properties; i.e.

• a single local degree of freedom that is realized as a massive graviton in linearization about an anti-de Sitter (AdS) vacuum.
• However, in contrast to TMG, the new "minimal massive gravity" has both a positive energy graviton and positive central charges for the asymptotic AdS-boundary conformal algebra.