In his research Gregor Weihs develops integrated quantum nano-photonics. He currently focuses on the physics and applications of quantum mechanical entanglement and experiments on the foundations of quantum mechanics. For future quantum communication technologies one will need efficient, bright, and miniaturized sources of entangled photon pairs as well as other integrated optical elements. Currently his group is working on a variety of sources of non-classical states of light based on semiconductor nanostructures utilizing semiconductor optical waveguides, single quantum dots and strongly coupled semiconductor microcavities. The long term goal is the quantum optical lab-on-a-chip.
