Voltage Fluctuations in a System of Capacitively Coupled Superconducting Nanowires

We theoretically investigate non-local fluctuation effects in a system of two capacitively coupled superconducting nanowires. We demonstrate that quantum phase slips in one of these nanowires induce voltage fluctuations in another one. These fluctuations are characterized by zero average voltage and...

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Bibliographic Details
Published in:Journal of superconductivity and novel magnetism 2020-08, Vol.33 (8), p.2329-2334
Main Authors: Latyshev, Alex, Semenov, Andrew G., Zaikin, Andrei D.
Format: Article
Language:English
Subjects:
Characterization and Evaluation of Materials
Condensed Matter Physics
Magnetic Materials
Magnetism
Original Paper
Physics
Physics and Astronomy
Strongly Correlated Systems
Superconductivity
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Summary:We theoretically investigate non-local fluctuation effects in a system of two capacitively coupled superconducting nanowires. We demonstrate that quantum phase slips in one of these nanowires induce voltage fluctuations in another one. These fluctuations are characterized by zero average voltage and non-vanishing voltage noise which exhibits a non-trivial behavior as a function of frequency and bias current. It would be interesting to test our predictions in modern experiments with superconducting nanowires.
ISSN:1557-1939
1557-1947
DOI:10.1007/s10948-019-05402-3