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”.
| Original language | English |
|---|---|
| Article number | 35 |
| Journal | Journal of High Energy Physics |
| Volume | 2018 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1 Aug 2018 |
Bibliographical note
Publisher Copyright:© 2018, The Author(s).
Funding
Open Access, ©c The Authors. Article funded by SCOAP3.
| Funders | Funder number |
|---|---|
| Science and Technology Facilities Council | ST/P000681/1 |
| Royal Society |
Keywords
- Chern-Simons Theories
- Classical Theories of Gravity
- Field Theories in Lower Dimensions