Room 326

Amplitudes from Coulomb to Kerr-Taub-NUT

Samim Akhtar

IMSc

Electric-magnetic duality, the Newman-Janis shift, and the double copy all act by elementary operations on three-point amplitudes. At the same time, they generate a network of interesting classical solutions spanning from the Coulomb charge via the dyon to the Kerr-Taub-NUT spacetime. We will discuss the amplitudes corresponding to some of these solutions, working to all orders in spin, but to leading perturbative order in coupling. We will see that the amplitudes double copy when the solutions are related by the classical double copy.

The talk will be based on arxiv.org/abs/2010.07861 (Emond, Huang et al.)