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 …

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 briefly review the manifold incarnations and facets of the notion that gravity, in certain
regards, can be re-conceived as the product of two gauge theories. We begin with a short …

The classical double copy relates exact solutions of gauge, gravity, and other theories.
Although widely studied, its origins and domain of applicability have remained mysterious. In …

A bstract We explain how the lowest-order classical gravitational radiation produced during
the inelastic scattering of two Schwarzschild black holes in General Relativity can be …

We use the recently developed generalized double-copy construction to obtain an improved
representation of the five-loop four-point integrand of N= 8 supergravity whose leading …

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 …

We show that the BRST Lagrangian double copy construction of supergravity as the
'square'of Yang–Mills theory finds a natural interpretation in terms of homotopy algebras. We …

A bstract The Weyl double copy is a procedure for relating exact solutions in biadjoint scalar,
gauge and gravity theories, and relates fields in spacetime directly. Where this procedure …

A bstract The double copy formalism provides an intriguing connection between gauge
theories and gravity. It was first demonstrated in the perturbative context of scattering …