Superluminal graviton propagation

Karim Benakli, Shira Chapman, Luc Darmé, Yaron Oz

Research output: Contribution to journalArticlepeer-review

Abstract

We use the method of characteristics to study superluminal graviton (which we call the swift graviton) propagation in theories of higher-curvature gravity of the form (Riemann)2, (Riemann)3, 2(Riemann)2 and (Riemann)4. We consider a pp-wave background. When probed by gravitons with an appropriate polarization, several of the gravitational theories under consideration exhibit characteristic hypersurfaces outside the flat spacetime light cone.

Original languageEnglish
Article number084026
JournalPhysical Review D
Volume94
Issue number8
DOIs
StatePublished - 19 Oct 2016

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