B1: Feedback control of photon statistics and spatio-temporal photon wavepackets
Prof. Dr. Andreas Knorr 
For externally pumped atomic or semiconductor based emitters in nano-cavities, the complex photon and phonon dynamics exhibits a wealth of bifurcations and instabilities. The central goal of this project is to systematically investigate exotic but intrinsically unstable quantum states and wavepackets, which can only be stabilized by additional feedback control mechanisms. Our vision is to extend concepts of time delayed feedback control and self-organizationto few photon and phonon states, where quantum fluctuations contribute or even dominate over the usual classical dynamics.