Single-photon processor

• Fachliche Zuordnung: Optik, Quantenoptik und Physik der Atome, Moleküle und Plasmen
• Förderung: Förderung in 2018
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 404423691

The single-photon processor will allow us to realize a series of experiments using single photons. lt will make it possible to a) generate single photons with high efficiency, b} to coherently control them with high accuracy and long-term stability, and c) to measure and detect them with the highest efficiency. The single-photon processor combines a number of components, which can be clustered into three categories. Photon generation and preparation: integrated wave-guided photon sources will allow us to generate efficiently indistinguishable single photons, which allow low-loss coupling into single-mode fibres for dlstribution in quantum networks. Photon manipulation: wave-guided quantum circuits will enable us to manipulate quantum Information, and to generate highly entangled states suited for quantum tasks. Photon analysis and detection: highly efficient superconducting detectors will enable us to detect the single photons with > 90% efficiency. Only the combination of the components altogether makes the single-photon processor fully functional. The single-photon processor will thus put us in a position to develop new quantum technology and use it for quantum-information processing applications. lt will enable us to perform experiments ranging from applied quantum technologies such as quantum computing, quantum networks, quantum metrology to the very foundations of physics.

• DFG-Verfahren: Forschungsgroßgeräte
• Großgeräte: Single-photon processor
• Gerätegruppe: 5240 Photonenzähler, Quantenphotometer
• Antragstellende Institution: Universität Stuttgart
• Leiterin: Professorin Dr. Stefanie Barz