4 papers
Quantum Effects for Black Holes with On-Shell Amplitudes
Katsuki Aoki, Andrea Cristofoli, Hyun Jeong +2
We develop a framework based on modern amplitude techniques to analyze emission and absorption effects in black hole physics, including Hawking radiation. We first discuss quantum…
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…
Classical Solutions and their Double Copy in Split Signature
Ricardo Monteiro, Donal O'Connell, David Peinador Veiga +1
The three-point amplitude is the key building block in the on-shell approach to scattering amplitudes. We show that the classical objects computed by massive three-point amplitudes…