TY - JOUR
T1 - Superluminal graviton propagation
AU - Benakli, Karim
AU - Chapman, Shira
AU - Darmé, Luc
AU - Oz, Yaron
N1 - Publisher Copyright:
© 2016 American Physical Society.
PY - 2016/10/19
Y1 - 2016/10/19
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84992740353&partnerID=8YFLogxK
U2 - 10.1103/PhysRevD.94.084026
DO - 10.1103/PhysRevD.94.084026
M3 - Article
AN - SCOPUS:84992740353
VL - 94
JO - Physical Review D - Particles, Fields, Gravitation and Cosmology
JF - Physical Review D - Particles, Fields, Gravitation and Cosmology
SN - 1550-7998
IS - 8
M1 - 084026
ER -