High-precision black hole scattering at four-loop order

6 Oct 2025, 17:30
30m
Coral Hall-1 (Hotel Empires)

Coral Hall-1

Hotel Empires

Speaker

Benjamin Sauer (Humboldt Universitaet zu Berlin)

Description

This talk will discuss the calculation of the impulse of a classical black hole scattering event at fifth Post-Minkowskian order. This calculation will contribute to new high precision waveform templates, which are needed for the new generation of gravitational wave detectors. I will describe the "worldline quantum field theory” formalism and the state of the art integration techniques that are needed to do this computation. In particular I will discuss advanced integration-by-part relations and the emergence of Calabi-Yau periods and how to deal with them using the technique of differential equations. These techniques will also be relevant for future particle physics computations.

Presentation materials