Photonische Quantensimulationen

The main objective of this project is to build a photonic quantum simulator that is capable of exploring new physical phenomena in quantum chemistry, solid-state physics and other physical systems. The motivation for this is to use the particular advantage of photons, the single particle quantum control and tunable measurement-induced interaction, to address unsolved problems in the complex world of quantum physics. This will be achieved by developing new techniques for the generation and manipulation of multi-photon entanglement. The main idea is to combine new photon sources, synchronization systems, integrated optical circuits and in particular high-efficiency detectors to break the ground for unimagined quantum control of ten or more individual photons. In the long run, these photon states will be entangled in path and polarization, which provides access to hyper-entangled states of up to 20 qubits. These multi-qubit states will be not only of relevance for studying novel quantum states in previously inaccessible parameter regime, but also for the implementation of new protocols in quantum computing. The results of these experiments will open up new and exciting prospects for photonic quantum computers.