28 citations · 75 across the 6 of their papers we have counts for
6 papers
All elastic amplitudes in the (black hole) eikonal phase
Nico Groenenboom
In this article we calculate the eikonal scattering amplitude for an arbitrary number of in- and out-particles, using covariant quantization in a spherical harmonics basis on the S…
Charged particle scattering near the horizon
Fabiano Feleppa, Nava Gaddam, Nico Groenenboom
We study Maxwell theory, in the presence of charged scalar sources, near the black hole horizon in a partial wave basis. We derive the gauge field configuration that solves Maxwell…
A toolbox for black hole scattering
Nava Gaddam, Nico Groenenboom
Hawking's free field theory is expected to break down after Page time. In previous work, we have shown that a primary dynamical reason for this breakdown is the dominance of gravit…
scattering: Eikonalisation and the Page curve
Nava Gaddam, Nico Groenenboom
In the spirit of studying the information paradox as a scattering problem, we pose and answer the following questions: i) What is the scattering amplitude for particles to emer…
Quantum gravity on the black hole horizon
Nava Gaddam, Nico Groenenboom, Gerard 't Hooft
We study scattering on the black hole horizon in a partial wave basis, with an impact parameter of the order of the Schwarzschild radius or less. This resembles the strong gravity…
Soft graviton exchange and the information paradox
Nava Gaddam, Nico Groenenboom
We show that there is a remarkable phase in quantum gravity where gravitational scattering amplitudes mediated by virtual gravitons can be calculated explicitly in effective field…