Speaker
David Kosower
Description
I outline a formalism for computing classically measurable quantities directly from on-shell quantum scattering amplitudes. I will discuss the ingredients needed for obtaining the classical result, and show how to set up the calculation to derive the result efficiently. The formalism is not specific to a given theory, and is ultimately destined to be used for general relativity. In this talk, I will show an examples from spinless scattering in electrodynamics: the momentum transfer to next-to-leading order.