Motivated by conceptual problems in quantum theories of gravity, the gravitational eikonal
approach, inspired by its electromagnetic predecessor, has been successfully applied to the …

The soft limits of scattering amplitudes have been extensively studied due to their essential
role in the computation of physical observables in collider physics. The universal …

A bstract We compute the next-to-leading order term in the scattering waveform of
uncharged black holes in classical general relativity and of half-BPS black holes in\(\mathcal …

A bstract We calculate the inelastic 2→ 3 one-loop amplitude for the scattering of two point-
like, spinless objects with generic masses involving the additional emission of a single …

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 …

A bstract We study the variance in the measurement of observables during scattering events,
as computed using amplitudes. The classical regime, characterised by negligible …

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

A bstract Observables related to the real part of the gravitational eikonal, such as the
deflection angle and time delay, have been found so far to have a smooth post-Minkowskian …

Asymptotically flat spacetimes have been studied in five separate regions: future/past
timelike infinity $ i^\pm $, future/past null infinity $\mathcal {I}^\pm $, and spatial infinity i 0 …

A bstract By following closely Weinberg's soft theorem, which captures the 1/ω pole
contribution to the amplitude for soft graviton emissions (ω< Λ) on top of an arbitrary …