184 citations · 651 across the 16 of their papers we have counts for
4 papers · 1 filter
Large Gauge Effects and the Structure of Amplitudes
Andrea Cristofoli, Asaad Elkhidir, Anton Ilderton +1
We show that large gauge transformations modify the structure of momentum conservation leading to non-vanishing three-point amplitudes in a simple toy model of a gravitational wave…
All order gravitational waveforms from scattering amplitudes
Tim Adamo, Andrea Cristofoli, Anton Ilderton +1
Waveforms are classical observables associated with any radiative physical process. Using scattering amplitudes, these are usually computed in a weak-field regime to some finite or…
The ultrarelativistic limit of Kerr
Tim Adamo, Andrea Cristofoli, Piotr Tourkine
The massless (or ultrarelativistic) limit of a Schwarzschild black hole with fixed energy was determined long ago in the form of the Aichelburg-Sexl shockwave, but the status of th…
Classical physics from amplitudes on curved backgrounds
Tim Adamo, Andrea Cristofoli, Anton Ilderton
We generalise the Kosower-Maybee-O'Connell (KMOC) formalism relating classical observables and scattering amplitudes to curved backgrounds. We show how to compute the final semicla…