Characterization of low loss microstrip resonators as a building block for circuit QED in a 3D waveguide
Source abstract
Abstract
Here we present the microwave characterization of microstrip resonators, made from aluminum and niobium, inside a 3D microwave waveguide. In the low temperature, low power limit internal quality factors of up to one million were reached. We found a good agreement to models predicting conductive losses and losses to two level systems for increasing temperature. The setup presented here is appealing for testing materials and structures, as it is free of wire bonds and offers a well controlled microwave environment. In combination with transmon qubits, these resonators serve as a building block for a novel circuit QED architecture inside a rectangular waveguide.
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Research context
OpenAlex topics: Quantum and electron transport phenomena · Quantum Information and Cryptography · Semiconductor Quantum Structures and Devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Institute for Quantum Optics and Quantum Information of the Austrian Academy of Sciences 1 , A-6020 Innsbruck, Austria
Institute for Experimental Physics, University of Innsbruck 2 , A-6020 Innsbruck, Austria
Research Centre for Microtechnology, Vorarlberg University of Applied Sciences 3 , A-6850 Dornbirn, Austria
Funding
Austrian Science Fund · Bundesministerium für Wissenschaft, Forschung und Wirtschaft · H2020 European Research Council
References (32)
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