This review describes the duality between color and kinematics and its applications, with the
aim of gaining a deeper understanding of the perturbative structure of gauge and gravity …

We describe a systematic framework for computing the conservative potential of a compact
binary system using modern tools from scattering amplitudes and effective field theory. Our …

A bstract We introduce a formalism for describing four-dimensional scattering amplitudes for
particles of any mass and spin. This naturally extends the familiar spinor-helicity formalism …

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

We develop a general formalism for computing classical observables for relativistic
scattering of spinning particles, directly from on-shell amplitudes. We then apply this …

Advances in scattering amplitudes have exposed previously-hidden color-kinematics and
double-copy structures in theories ranging from gauge and gravity theories to effective field …

The double copy is, in essence, a map between scattering amplitudes in a broad variety of
familiar field and string theories. In addition to the mathematically rich intrinsic structure, it …

We study the link between classical scattering of spinning black holes and quantum
amplitudes for massive spin-s particles. Generic spin orientations of the black holes are …

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 …

The duality between color and kinematics was originally observed for purely adjoint
massless gauge theories, and later found to hold even after introducing massive fermionic …