ResearchMicrowave Signal Detection at the Quantum Level
Microwave signals at the single photon level are used to manipulate and read-out quantum devices at ultra-low temperatures and for quantum communication.
Team
Research Article
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Physical Review B
109, 174312
(2024)
Preprint: arXiv:2402.01884
The Walther-Meissner-Institute pioneered superconducting quantum circuits representing quantum optical experiments. This research requires the generation of microwaves with tailored properties and the development of detection techniques which allow to extract quantum signature of the signal. Researchers at the WMI developed the hardware and the analysis strategies and successfully demonstrated them in several seminal experiments.
The techniques developed here, are not exclusively used for experiments involving superconducting circuits, but also find applications for the more general set of experiments involving microwaves in quantum science experiments, including quantum sensing and quantum materials.