Classical double copy from color kinematics duality: A proof in the soft limit
Classical double copy from color kinematics duality: A proof in the soft limit
Classical double copy is an intriguing relationship between classical solutions to a gravity theory and solutions to classical Yang-Mills equations. Although formally inspired by the double copy relation between (quantum) scattering amplitudes in Yang-Mills and perturbative gravity, a direct proof of the former from the latter continues to be under …