Speaker
Jitze Hoogeveen
Description
We develop an efficient framework for the computation of gravitational Self-Force (SF) dynamics with Worldline Quantum Field Theory (WQFT). This “response theory” constructs an effective action for the self-forced secondary, expanded in terms of response functions. These response functions encode all SF dynamics and are interpreted as classical off-shell n-point graviton correlation functions. We discuss in length how SF dynamics may be obtained from response functions, when supplemented by 0SF dynamics. The framework is then explicitly applied to gravitational scattering in the Aichelburg-Sexl background describing a massless black hole. The prerequisite 0SF dynamics is explicitly computed, and promising work towards 1SF discussed.