Millikelvin – Microwave – Photonic Probestation

Weiß, Matthias; Krenner, Hubert

Abstract

Many practical implementations demand such flexible hybrid architectures which combine the unique strengths of individual components and at the same time avoid individual shortcomings. Here, we present this innovative platform for the validation of hybrid quantum devices and its capabilities. At the Physikalische Institut at Universität Münster we set up a standardized test and development system for source and detection devices to validate the performance of hybrid quantum devices and their individual components. The central apparatus is a photonic probestation equipped with optical fiber ports and microwave connections designed and specified for operation at millikelvin temperatures. This unique combination of functionalities opens applications in testing and benchmarking of e.g. quantum transduction of quantum information between photonic, electronic, or phononic domains. This apparatus is part of a DFG-Major Instrumentation Initiative and open for joint research projects outside of Universität Münster. This project is funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) - 491605905 as part of the Major Instrumentation Initiative *Quantum Communication Development Environment*.