65 citations · 230 across the 17 of their papers we have counts for
4 papers · 1 filter
Black Hole S-matrix for a scalar field
Panos Betzios, Nava Gaddam, Olga Papadoulaki
We describe a unitary scattering process, as observed from spatial infinity, of massless scalar particles on an asymptotically flat Schwarzschild black hole background. In order to…
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…
Black holes, quantum chaos, and the Riemann hypothesis
Panos Betzios, Nava Gaddam, Olga Papadoulaki
Quantum gravity is expected to gauge all global symmetries of effective theories, in the ultraviolet. Inspired by this expectation, we explore the consequences of gauging CPT as a…