We use a previously developed scattering-amplitudes-based framework for determining two-
body Hamiltonians for generic binary systems with arbitrary spin S. By construction this …

We describe a systematic framework for finding the conservative potential of compact binary
systems with spin based on scattering amplitudes of particles of arbitrary spin and effective …

We analyze constraints from perturbative unitarity and crossing on the leading contributions
of higher-dimension operators to the four-graviton amplitude in four spacetime dimensions …

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 We develop massive higher-spin theory as a framework for describing dynamics of
rotating compact objects, such as Kerr black holes. In this paper, we explore gauge …

A bstract We explore various tree-level double copy constructions for amplitudes including
massive particles with spin. By working in general dimensions, we use that particles with …

The explicit covariant actions and propagators are given for fields describing particles of all
spins and masses, in any spacetime dimension. Massive particles are realized as …

We study 4-dimensional higher-derivative conformal higher-spin (CHS) fields generalizing
Weyl graviton and conformal gravitino. They appear, in particular, as “induced” theories in …

A bstract We study the cubic vertices for Maxwell-like higher-spins in flat and (A) dS
background spaces of any dimension. Reducibility of their free spectra implies that a single …

A bstract We consider the extension of techniques for bounding higher-dimension operators
in quantum effective field theories to higher-point operators. Working in the context of …