3 papers
hep-th2026
A Note on a High-Energy Limit of Gravitational Perturbation Theory
Poul H. Damgaard, Ludovic Plante
The post-Minkowskian expansion of general relativity expands the metric in Newton's constant G around flat space-time, but much effort currently focuses on ways to extend its range…
hep-th2023
Classical Observables from the Exponential Representation of the Gravitational S-Matrix
Poul H. Damgaard, Elias Roos Hansen, Ludovic Planté +1
By combining the KMOC-formalism with the exponential representation of the scattering matrix we show that the two-body scattering angle is given by the corresponding matrix element…
hep-th2021
Classical Gravity from Loop Amplitudes
N. Emil J. Bjerrum-Bohr, Poul H. Damgaard, Ludovic Planté +1
We describe an efficient method for extracting the parts of -dimensional loop integrals that are needed to derive observables in classical general relativity from scattering amp…