Speaker
Manfred Kraus
(IF-UNAM)
Description
In this talk, I present a new perspective on spinning black holes in which their classical dynamics emerges from a tower of fixed-spin theories. Starting from quantum amplitudes for massive particles with definite spin, we construct gravitational scattering amplitudes for each spin sector and study their classical limit. Remarkably, the structure of the amplitudes reveals that the dynamics of a Kerr black hole can be organized as a hierarchy of contributions associated with increasing powers of spin. By analyzing these sectors systematically, we obtain new results for binary black-hole dynamics at the third post-Minkowskian order and extend classical observables to quartic order in spin.
Author
Manfred Kraus
(IF-UNAM)
