Dr. Roberto Bonezzi, HU Berlin

Title: A worldline theory for (super)gravity

Abstract:

It is widely accepted that one of the most satisfactory features of String Theory is to reproduce Einstein’s equations (to lowest order in alpha prime) from consistency of the first-quantized string. I will try to show that this feature is not at all peculiar to String Theory. In particular, I will discuss some recent results in the quantization of the N=4 spinning particle coupled to a background metric, Kalb-Ramond field and dilaton. Quantum consistency of the particle is shown to “predict” the field equations for all its backgrounds.