Upcoming Talk

Radu Roiban

ETH Zürich - Institute for Theoretical Sciences
Pennsylvania State University

Quantum Scattering Amplitudes for Precision Gravitational-Wave Physics

The observation of gravitational waves by the LIGO/Virgo collaborations has opened a new window onto our Universe, and upcoming experiments promise ever more precise measurements. In parallel, motivated by the view of gravity as a massless spin-2 mediator, quantum scattering-amplitude methods—developed in particle physics—offer a new framework for gravity and have already impacted weak-field, fully relativistic predictions for gravitational-wave signals. After outlining the growing need for high-precision analytical predictions for current and future gravitational-wave observations, we review amplitude-based approaches to gravitational-wave observables, emphasizing recent successes and remaining challenges to meet the accuracy demanded by forthcoming data.

Host: Johannes Brödel