Fundamental Quantum Physics and Quantum Hardware

In connection with the other research fields, it is essential to investigate the generation, manipulation, and detection of non-classical states of light. This involves the development of tailored plug&play photon pair sources as well as four-photon sources for more complex quantum walks or quantum imaging schemes and other quantum light sources. Besides the technical challenges, there are many fundamental research questions open and are ready to be explored like efficient state tomography without destroying the photon in a strong measurement.