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 A precise link is derived between scalar-graviton S-matrix elements and
expectation values of operators in a worldline quantum field theory (WQFT), both used to …

Using the recently established formalism of a worldline quantum field theory description of
the classical scattering of two spinless black holes, we compute the far-field time-domain …

We compute the total radiated momentum carried by gravitational waves during the
scattering of two spinless black holes at the lowest order in Newton's constant, O (G 3), and …

The recently established formalism of a worldline quantum field theory, which describes the
classical scattering of massive bodies (black holes, neutron stars, or stars) in Einstein …

We compute the conservative two-body Hamiltonian of a compact binary system with a
spinning black hole through O (G 3) to all orders in velocity, including linear and quadratic …

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 …

A bstract We show that the Newman-Janis shift property of the exact Kerr solution can be
interpreted in terms of a worldsheet effective action. This holds both in gravity, and for the …

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 …