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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Silicon colour centres for quantum technology


Scientists from the Walther Group, University of Vienna have now designed an unconditionally secure system for shopping in such settings, combining...


The Walther Group published a new paper in Optica.