Exotic Massive 3D Gravity
Mehmet \"Ozkan, Yi Pang, Paul K. Townsend

TL;DR
Exotic Massive Gravity is a novel 3D gravity theory that extends New Massive Gravity with a parity-odd action, introducing a new class of third-way consistent models with unique properties.
Contribution
It introduces Exotic Massive Gravity, a new third-way consistent 3D gravity model with a parity-odd action, expanding the landscape of massive gravity theories.
Findings
Propagates a parity doublet of massive spin-2 modes.
Features a Chern-Simons-like, parity-odd action.
Part of an infinite sequence of third-way consistent theories.
Abstract
The linearized equations of `New Massive Gravity' propagate a parity doublet of massive spin-2 modes in 3D Minkowski spacetime, but a different non-linear extension is made possible by `third-way' consistency. There is a `Chern-Simons-like' action, as for other 3D massive gravity models, but the new theory is `exotic': its action is parity odd. This `Exotic Massive Gravity' is the next-to-simplest case in an infinite sequence of third-way consistent 3D gravity theories, the simplest being the `Minimal Massive Gravity' alternative to `Topologically Massive Gravity'.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.
