Speaker
Dimitrios Kosmopoulos
Description
I will present a novel approach for calculating observables in the context of the binary inspiral problem which is designed to leverage the all-orders-in-G information carried by exact solutions of the Einstein equations. This framework computes scattering amplitudes in the curved-space setup where a light particle of mass m is treated as a probe in the geometry sourced by a heavy particle of mass M. Observables are organized in the gravitational self-force expansion, i.e. as an expansion in m/M. Backreaction of the background is captured via Goldstone bosons associated with the spontaneous breaking of spacetime symmetries. I will discuss advantages introduced by this formalism and cross checks against the literature.
