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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The recent publication "Single-active-element demultiplexed multi-photon source" by the Walther Group made it onto the cover of the first issue of...


Congratulations to Rebecca Hofer on defending her Master thesis with distinction!


Experimental relativistic zero-knowledge proofs