Conveners
Amplitudes for black holes
- Alexander Ochirov
Amplitudes for black holes
- Jiang-Hao Yu
High-precision theoretical predictions for the motion of compact binary systems are essential for maximizing the discovery potential of current and next-generation gravitational-wave observations, such as LIGO-Virgo-Kagra, Taiji, TianQin, and the Einstein Telescope. The Effective Field Theory (EFT) methodology, integrated with state-of-the-art multi-loop computational techniques, has proven...
We develop an on-shell approach to study black hole mergers. Since, asymptotically, the initial and final states can be described by point-like spinning particles, we propose a massive three-point amplitude for the merger of two Schwarzschild black holes into a Kerr black hole. This three-point amplitude and the spectral function of the final state are fully determined by kinematics and the...
Quantum field theory of higher-spin particles is a formidable subject,
where preserving the physical number of degrees of freedom in the
Lorentz-invariant way requires a host of auxiliary fields. They can be
chosen to have a rich gauge-symmetry structure, but introducing
consistent interactions in such approaches is still a non-trivial task,
with massive higher-spin Lagrangians...
