RT Journal Article
T1 Causality constraints on corrections to the graviton three-point coupling
A1 Otero Camaño, Xián
A1 Edelstein Glaubach, José Daniel
A1 Maldacena, Juan
A1 Zhiboedov, Alexander
K1 AdS-CFT Correspondence
K1 Models of Quantum Gravity
K1 Classical Theories of Gravity
AB We consider higher derivative corrections to the graviton three-point couplingwithin a weakly coupled theory of gravity. Lorentz invariance allows further structuresbeyond the one present in the Einstein theory. We argue that these are constrained bycausality. We devise a thought experiment involving a high energy scattering processwhich leads to causality violation if the graviton three-point vertex contains the additionalstructures. This violation cannot be fixed by adding conventional particles with spinsJ ≤ 2. But, it can be fixed by adding an infinite tower of extra massive particles withhigher spins, J > 2. In AdS theories this implies a constraint on the conformal anomalycoefficients   a−cc   .1∆2gapin terms of ∆gap, the dimension of the lightest single trace operatorwith spin J > 2. For inflation, or de Sitter-like solutions, it indicates the existence ofmassive higher spin particles if the gravity wave non-gaussianity deviates significantly fromthe one computed in the Einstein theory
PB Springer
YR 2016
FD 2016-02-03
LK http://hdl.handle.net/10347/16317
UL http://hdl.handle.net/10347/16317
LA eng
NO Camanho, X.O., Edelstein, J.D., Maldacena, J. et al. J. High Energ. Phys. (2016) 2016: 20. https://doi.org/10.1007/JHEP02(2016)020
DS Minerva
RD 28 abr 2026