344 citations · 2.8k across the 40 of their papers we have counts for
8 papers · 1 filter
Quantum Field Theory, Worldline Theory, and Spin Magnitude Change in Orbital Evolution
Zvi Bern, Dimitrios Kosmopoulos, Andres Luna +4
A previous paper~\cite{Bern:2022kto} identified a puzzle stemming from the amplitudes-based approach to spinning bodies in general relativity: additional Wilson coefficients appear…
Scattering in Black Hole Backgrounds and Higher-Spin Amplitudes: Part II
Yilber Fabian Bautista, Alfredo Guevara, Chris Kavanagh +1
We continue to investigate correspondences between, on the one hand, scattering amplitudes for massive higher-spin particles and gravitons in appropriate quantum-to-classical limit…
Scattering Angles in Kerr Metrics
Poul H. Damgaard, Jitze Hoogeveen, Andres Luna +1
Scattering angles for probes in Kerr metrics are derived for scattering in the equatorial plane of the black hole. We use a method that naturally resums all orders in the spin of t…
Scattering in Black Hole Backgrounds and Higher-Spin Amplitudes: Part I
Yilber Fabian Bautista, Alfredo Guevara, Chris Kavanagh +1
The scattering of massless waves of helicity in Schwarzschild and Kerr backgrounds is revisited in the long-wavelenght regime. Using a novel description of su…
A worldsheet for Kerr
Alfredo Guevara, Ben Maybee, Alexander Ochirov +2
We show that the Newman-Janis shift property of the exact Kerr solution can be interpreted in terms of a worldsheet effective action. This holds both in gravity, and for the single…
Black-hole scattering with general spin directions from minimal-coupling amplitudes
Alfredo Guevara, Alexander Ochirov, Justin Vines
We study the link between classical scattering of spinning black holes and quantum amplitudes for massive spin- particles. Generic spin orientations of the black holes are consi…