Skip to Main content Skip to Navigation
Journal articles

Light-like Scattering in Quantum Gravity

Abstract : We consider scattering in quantum gravity and derive long-range classical and quantum contributions to the scattering of light-like bosons and fermions (spin-0, spin-1/2, spin-1) from an external massive scalar field, such as the Sun or a black hole. This is achieved by treating general relativity as an effective field theory and identifying the non-analytic pieces of the one-loop gravitational scattering amplitude. It is emphasized throughout the paper how modern amplitude techniques, involving spinor-helicity variables, unitarity, and squaring relations in gravity enable much simplified computations. We directly verify, as predicted by general relativity, that all classical effects in our computation are universal (in the context of matter type and statistics). Using an eikonal procedure we confirm the post-Newtonian general relativity correction for light-like bending around large stellar objects. We also comment on treating effects from quantum hbar dependent terms using the same eikonal method.
Complete list of metadata

Cited literature [60 references]  Display  Hide  Download
Contributor : Emmanuelle De Laborderie Connect in order to contact the contributor
Submitted on : Tuesday, February 7, 2017 - 11:42:04 AM
Last modification on : Friday, August 5, 2022 - 12:31:08 PM
Long-term archiving on: : Monday, May 8, 2017 - 12:53:36 PM


Files produced by the author(s)



N. E. J. Bjerrum-Bohr, John F. Donoghue, Barry R. Holstein, Ludovic Plante, Pierre Vanhove. Light-like Scattering in Quantum Gravity. Journal of High Energy Physics, Springer, 2016, 2016 (11), pp.117. ⟨10.1007/JHEP11(2016)117⟩. ⟨cea-01459285⟩



Record views


Files downloads