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arXiv · 1806.04179

Exotic Massive 3D Gravity

Mehmet Özkan·Yi Pang·Paul K. Townsend
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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'.

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Mehmet Özkan, Yi Pang, Paul K. Townsend. 2018-06-11. Exotic Massive 3D Gravity. https://doi.org/10.1007/jhep08(2018)035

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