The detection of gravitational waves has created a pressing need for high-precision theoretical models for binary systems. In this talk, I will review recent progress in the analytic computation of physical observables for binary black hole and neutron star systems using modern on-shell methods. I will focus on how the on-shell methods, which focus directly on gauge-invariant observables, not only offer significant simplifications over traditional formalisms, but also provide new insights into the structure of classical general relativity. As an illustration, I will present a newly identified violation of the peeling behavior in the asymptotic metric.

Biography

Fei Teng got his PhD from University of Utah in 2017, and then worked at Uppsala University and Pennsylvania State University as a postdoc researcher, before joining Fudan University in 2024. His research interests are mainly in scattering amplitudes and their applications.

Inviter: Jiang-Hao Yu