Speaker
Description
The need for high precision predictions of the general relativistic two-body problem for the future
generation of gravitational wave detectors has opened a new window for the application of perturbative
quantum field theory techniques to the domain of classical gravity. In this talk I will show how observables
in the classical scattering of black holes and neutron stars
can be efficiently computed in the post-Minkowskian expansion using a world-line quantum field theory;
thereby importing multi-loop Feynman integration technology to this field.
Here, the black holes or neutron stars are modelled as point particles in an effective field theory
sense. Fascinatingly, the intrinsic spin of the black holes is captured by a supersymmetric
extension of the world-line theory, enabling the computation of the far field wave-form and scattering angle
including spin to highest precision. With a view towards the audience I will sketch our recent state-of-the-art
NNNLO computation (4PM order) of Kerr-Black Hole scattering and the challenges and opportunities ahead.
