72 citations · 129 across the 11 of their papers we have counts for
14 papers · 1 filter
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…
Hidden simplicity in the scattering for neutron stars and black holes
Rafael Aoude, Andreas Helset
Heavy particle effective theory applied to spinning black holes provides a natural framework in which propagators linearize and numerators exponentiate. In this work, we exploit th…
Amplitudes for Hawking Radiation
Rafael Aoude, Donal O'Connell, Matteo Sergola
We obtain the Hawking spectrum by exponentiating a series of Feynman diagrams describing a scalar field scattering through a collapse background. Our approach is rooted in semiclas…
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…
Positivity in Amplitudes and Quantum Entanglement
Rafael Aoude, Gilly Elor, Grant N. Remmen +1
We explore the connection of positivity of the imaginary part of forward elastic amplitudes for perturbative scattering with consistency of the entanglement generated by the S-matr…
Leading-order gravitational radiation to all spin orders
Rafael Aoude, Kays Haddad, Carlo Heissenberg +1
Starting with on-shell amplitudes compatible with the scattering of Kerr black holes, we produce the gravitational waveform and memory effect including spin at their leading post-M…