20 citations · 24 across the 7 of their papers we have counts for
7 papers
Quantum Love Numbers are Non-Zero
Asaad Elkhidir, Godwin Martin, Julio Parra-Martinez +1
The static Love numbers of four-dimensional Schwarzschild black holes vanish classically. We show that this is not true in the quantum theory. Working in the worldline effective fi…
Supertranslations are Soft Dressings
Asaad Elkhidir, Donal O'Connell, Radu Roiban
Asymptotic states of massive particles in electrodynamics and gravity are not uniquely defined because of the absence of a mass gap. Working in the KMOC formalism, we study the cla…
The ABCs of Amplitudes, Bogoliubov and Crossing
Rafael Aoude, Asaad Elkhidir, Anton Ilderton +2
It is now common to describe classical backgrounds involving dynamical black holes with the production of gravitational radiation using the methods of scattering amplitudes. In tha…
Inelastic Coupled-Channel Eikonal Scattering
Rafael Aoude, Andrea Cristofoli, Asaad Elkhidir +1
Emitted radiation and absorption effects in black hole dynamics lead to inelastic scattering amplitudes. In this paper, we study how these effects introduce an inelasticity functio…
Supertranslations from Scattering Amplitudes
Asaad Elkhidir, Donal O'Connell, Radu Roiban
On-shell methods have found a new application to local observables such as asymptotic radiation fields and gravitational waveforms. While these observables are invariant under smal…
Radiation and Reaction at One Loop
Asaad Elkhidir, Donal O'Connell, Matteo Sergola +1
We study classical radiation fields at next-to-leading order using the methods of scattering amplitudes. The fields of interest to us are sourced when two massive, point-like objec…
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…