Gauge invariant double copy of Yang-Mills theory: The quartic theory
Gauge invariant double copy of Yang-Mills theory: The quartic theory
We give an explicit gauge invariant, off-shell and local double copy construction of gravity from Yang-Mills theory to quartic order. To this end we use the framework of homotopy algebras, and we identify a rich new algebraic structure associated to color-stripped Yang-Mills theory. This algebra, which is a generalization of …