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Magnetic Imaging of Superconducting Qubit Devices with Scanning SQUID-on-tip

Marchiori, Estefani and Ceccarelli, Lorenzo and Rossi, Nicola and Romagnoli, Giulio and Herrmann, Johannes and Besse, Jean-Claude and Krinner, Sebastian and Wallraff, Andreas and Poggio, Martino. (2022) Magnetic Imaging of Superconducting Qubit Devices with Scanning SQUID-on-tip. Applied physics letters, 121 (5). 052601.

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Abstract

We use a scanning superconducting quantum interference device (SQUID) to image the magnetic flux produced by a superconducting device designed for quantum computing. The nanometer-scale SQUID-on-tip probe reveals the flow of superconducting current through the circuit as well as the locations of trapped magnetic flux. In particular, maps of current flowing out of a flux-control line in the vicinity of a qubit show how these elements are coupled, providing insight on how to optimize qubit control.
Faculties and Departments:05 Faculty of Science > Departement Physik > Physik > Nanotechnologie Argovia (Poggio)
UniBasel Contributors:Marchiori, Estéfani and Ceccarelli, Lorenzo and Rossi, Nicola and Romagnoli, Giulio and Poggio, Martino
Item Type:Article, refereed
Article Subtype:Research Article
Publisher:American Institute of Physics
ISSN:0003-6951
e-ISSN:1077-3118
Note:Publication type according to Uni Basel Research Database: Journal article
Language:English
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Last Modified:15 Aug 2022 08:53
Deposited On:15 Aug 2022 08:42

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