We match scattering amplitudes in point particle effective field theory (EFT) and general
relativity to extract low frequency dynamical tidal responses of rotating (Kerr) black holes to …

We study the effect of cubic and tidal interactions on the spectrum of gravitational waves
emitted in the inspiral phase of the merger of two nonspinning objects. There are two …

A bstract We show that any static linear perturbations around Schwarzschild black holes
enjoy a set of conserved charges which forms a centrally extended Schrödinger …

A bstract We present for the first time an efficient algorithm to find a basis of kinematically
independent structures built of (massless and massive) spinor helicity variables in four …

A bstract We study gravitational absorption effects using effective on-shell scattering
amplitudes. We develop an in-in probability-based framework involving plane-and partial …

A bstract The spin supplementary conditions are constraints on spin degrees of freedom in
classical relativity which restricts physical degrees of freedom to rotations. It is argued that …

The tidal response of a compact object is a key gravitational-wave observable encoding
information about its interior. This link is subtle due to the nonlinearities of general relativity …

The tidal response of compact objects in an inspiraling binary system is measured by a set
of tidal Love and dissipation numbers imprinted in the gravitational waveforms. While a four …

In this paper we define absorptive Compton amplitudes, which captures the absorption
factor for waves of spin-weight-$ s $ scattering in black hole perturbation theory. At the …

Future gravitational wave (GW) detectors have been projected to be able to probe the nature
of compact objects in great detail. In this work, we study the potential observability of the …