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 give a comprehensive review of recent developments on using the pure spinor
formalism to compute massless superstring scattering amplitudes at tree level. The main …

A bstract We compute the next-to-leading order term in the scattering waveform of
uncharged black holes in classical general relativity and of half-BPS black holes in\(\mathcal …

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 …

A bstract The search for a theory of the S-Matrix over the past five decades has revealed
surprising geometric structures underlying scattering amplitudes ranging from the string …

We study the double-copy relation between classical solutions in gauge theory and gravity,
focusing on four-dimensional vacuum metrics of algebraic type D, a class that includes …

A bstract It was recently proposed that the kinematic algebra featuring in the colour-
kinematics duality for scattering amplitudes in heavy-mass effective field theory (HEFT) and …

A bstract Recent works have explored how scattering amplitudes in quantum self-dual Yang-
Mills theory and self-dual gravity can be interpreted as resulting from an anomaly, as first …

A bstract We consider gravitational massive scalar-scalar scattering from unitarity and
demonstrate how intermediate soft graviton behavior and the concept of extracting classical …