Thursday, March 02, 2023, 16:00
online
(for the zoom link contact michael.spira@psi.ch, marco.rocco@psi.ch
or max.zoller@psi.ch)
Zvi Bern, UCLA
Abstract:
The remarkable detection of gravitational waves by the LIGO/Virgo
collaboration has opened a new window into the cosmos. In this
colloquium we explain how particle theorists can help out with
calculations directly relevant for gravitational-wave emission from
compact astrophysical objects. The past decade has seen enormous
advances in our ability to compute quantum scattering amplitudes making
seemingly impossible calculations tractable. These advances include
ideas such as the duality between color and kinematics, double-copy
relations, generalized unitarity, and improved integration methods.
After introducing these concepts, we explain how these ideas are
transferred to produce new state-of-the-art calculations for the binary
black hole inspiral problem.