Compton Black-Hole Scattering for $s \leq 5/2$

Understand

Quantum scattering amplitudes for massive matter have received new attention in connection to classical calculations relevant to gravitational-wave physics.

• Amplitude methods and insights are now employed for precision computations of observables needed for describing the gravitational dynamics of bound massive objects such as black holes.
• An important direction is the inclusion of spin effects needed to accurately describe rotating (Kerr) black holes.
• Higher-spin amplitudes introduced by Arkani-Hamed, Huang and Huang at three points have by now a firm connection to the effective description of Kerr black-hole physics.