Exotic massive gravity: Causality and a Birkhoff-like theorem

Tekin, Bayram
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 we find some exact solutions.

Citation Formats
E. KILIÇARSLAN and B. Tekin, “Exotic massive gravity: Causality and a Birkhoff-like theorem,” PHYSICAL REVIEW D, vol. 100, no. 4, pp. 0–0, 2019, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/42012.