Superluminal graviton propagation

Karim Benakli; Shira Chapman; Luc Darmé; Yaron Oz

doi:10.1103/PhysRevD.94.084026

Superluminal graviton propagation

Karim Benakli, Shira Chapman, Luc Darmé, Yaron Oz

Tel Aviv University

Research output: Contribution to journal › Article › peer-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 language	American English
Article number	084026
Journal	Physical review D
Volume	94
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevD.94.084026
State	Published - 19 Oct 2016

All Science Journal Classification (ASJC) codes

Nuclear and High Energy Physics

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10.1103/PhysRevD.94.084026

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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.",

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Superluminal graviton propagation

Abstract

All Science Journal Classification (ASJC) codes

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