Our research combines the development of scalable photonic quantum technology for quantum computing and other quantum information applications with the investigation of fundamental quantum science questions. The main activities reach from quantum control of single photons using solid-state photon sources, integrated waveguide technology, tailored nonlinear media and detectors based on superconductor technology to interferometric precision measurements of weak gravitational forces.


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EPIQUE, a research project funded by the European Commission, aims to establish the foundation for a European quantum computer based on photons, the...


Congratulations to Dr. Haocun Yu for winning one of the Boeing Quantum Creators Prizes 2023 in the category Complexity and Metrology!


The Walther Group published a new paper in Applied Physics Letters