Seminar - What do string amplitudes actually look like? - Lorenz Eberhardt

Monday 5 Oct 2026, 15:00 → 16:00 Europe/Berlin

A.1.01 - Alps Süd (MPP)

String theory gives a completely explicit formula for quantum gravitational scattering amplitudes, at least in idealized settings. Actually computing the relevant integrals is a formidable challenge. I will explain a concrete method that achieves this at one loop using an idea from number theory. The result is a practical formula that can readily be implemented. I will show what these amplitudes look like, how they differ from QFT, and what they tell us about the UV structure of string theory.