Starting with on-shell amplitudes compatible with the scattering of Kerr black holes up to
Compton-amplitude contact terms, we produce the gravitational waveform and memory …

We compare recent one-loop-level, scattering-amplitude-based, computations of the
classical part of the gravitational bremsstrahlung waveform to the frequency-domain version …

If a set of massive objects collide in space and the fragments disperse, possibly forming
black holes, then this process will emit gravitational waves. Computing the detailed …

A bstract We revisit the amplitude-based derivation of gravitational waveform for the
scattering of two scalar black holes at subleading post-Minkowskian (PM) order. We take an …

A bstract Using universal predictions provided by classical soft theorems, we revisit the
energy emission spectrum for gravitational scatterings of compact objects in the low …

A bstract In [1], logarithmic correction to subleading soft photon and soft graviton theorems
have been derived in four spacetime dimensions from the ratio of IR-finite S-matrices. This …

A bstract In this paper, we analyze the loop corrections to celestial OPE for gluons and
gravitons. Even at the loop level, the soft gluons and gravitons have conformal …

A bstract Classical soft graviton theorem gives the gravitational wave-form at future null
infinity at late retarded time u for a general classical scattering. The large u expansion has …

A bstract We derive the classical gravitational radiation from an aligned spin binary black
hole on closed orbits, using a dictionary built from the 5-point QFT scattering amplitude of …

A bstract We consider massless scattering from the point of view of the position, momentum,
and celestial bases. In these three languages different properties of physical processes …