Charge quantum interference device

The demonstration of coherent quantum phase slips (CQPS) in disordered superconductors has opened up a new route towards exploring the fundamental charge–phase duality in superconductors, with the promise of devices with new functionalities and a robust quantum current standard based on CQPS. Here w...

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Bibliographic Details
Published in:Nature physics 2018-06, Vol.14 (6), p.590-594
Main Authors: de Graaf, S. E., Skacel, S. T., Hönigl-Decrinis, T., Shaikhaidarov, R., Rotzinger, H., Linzen, S., Ziegler, M., Hübner, U., Meyer, H.-G., Antonov, V., Il’ichev, E., Ustinov, A. V., Tzalenchuk, A. Ya, Astafiev, O. V.
Format: Article
Language:English
Subjects:
Interference
Superconducting quantum interference devices
Superconductivity
Superconductors
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Summary:The demonstration of coherent quantum phase slips (CQPS) in disordered superconductors has opened up a new route towards exploring the fundamental charge–phase duality in superconductors, with the promise of devices with new functionalities and a robust quantum current standard based on CQPS. Here we demonstrate a device that integrates several CQPS junctions: the charge quantum interference device. The charge quantum interference device becomes the dual of the well-known superconducting quantum interference device, and is a manifestation of the Aharonov–Casher effect in a continuous superconducting system devoid of dielectric barriers.
ISSN:1745-2473
1745-2481
DOI:10.1038/s41567-018-0097-9