11–13 Apr 2022
Mainz Institute for Theoretical Physics, Johannes Gutenberg University
Europe/Berlin timezone

Worldsheet description of Kerr interactions

13 Apr 2022, 16:40
50m
Mainz Institute for Theoretical Physics, Johannes Gutenberg University

Mainz Institute for Theoretical Physics, Johannes Gutenberg University

Virtual Workshop

Speaker

Alexander Ochirov

Description

The recent progress of applying QFT methods to classical GR has provided a new perspective on the Kerr black hole solution. Its leading gravitational interactions are known to involve an infinite tower of spin-induced multipoles with unit coupling constants. In this talk, I will present a novel form of the classical worldline action that implements these multipole interactions within a single worldsheet integral, which is inspired by the Newman-Janis shift relationship of the Kerr and Schwarzschild solutions. I will also discuss connections to our recently discovered ability to model such interactions using a certain family of scattering amplitudes, as well as a simple double-copy property hidden within.

Presentation materials