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arXiv · 1906.09429

Exotic Massive Gravity: Causality and a Birkhoff-like Theorem

Ercan Kilicarslan·Bayram Tekin
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Abstract

We study the local causality issue via the Shapiro time-delay computations in the on-shell consistent exotic massive gravity in three dimensions. The theory shows time-delay as opposed to time-advance despite having a ghost at the linearized level both for asymptotically flat and anti-de Sitter spacetimes. We also prove a Birkhoff-like theorem: any solution with a hypersurface orthogonal non-null Killing vector field is conformally flat; and find some exact solutions.

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Ercan Kilicarslan, Bayram Tekin. 2019-08-19. Exotic Massive Gravity: Causality and a Birkhoff-like Theorem. https://doi.org/10.1103/physrevd.100.044035

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