Abstract The Laser Interferometer Space Antenna (LISA) has the potential to reveal wonders
about the fundamental theory of nature at play in the extreme gravity regime, where the …

Much of the success of gravitational-wave astronomy rests on perturbation theory.
Historically, perturbative analysis of gravitational-wave sources has largely focused on post …

PSR J0740+ 6620 has a gravitational mass of 2.08±0.07 M⊙, which is the highest reliably
determined mass of any neutron star. As a result, a measurement of its radius will provide …

A bstract Quantum scattering amplitudes for massive matter have received new attention in
connection to classical calculations relevant to gravitational-wave physics. Amplitude …

A bstract Building upon the worldline effective field theory (EFT) formalism for spinning
bodies developed for the Post-Newtonian regime, we generalize the EFT approach to Post …

Recent work applying the notion of pseudospectrum to gravitational physics showed that the
quasinormal mode spectrum of black holes is unstable, with the possible exception of the …

A bstract It was shown recently that the static tidal response coefficients, called Love
numbers, vanish identically for Kerr black holes in four dimensions. In this work, we confirm …

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 …

A bstract Perturbations of massless fields in the Kerr-Newman black hole background enjoy
a (“Love”) SL (2, ℝ) symmetry in the suitably defined near zone approximation. We present a …

A bstract We generalize the worldline EFT formalism developed in [4–9] to calculate the non-
conservative tidal effects on spinning black holes in a long wavelength approximation that is …