| Issue |
EPL
Volume 115, Number 5, September 2016
|
|
|---|---|---|
| Article Number | 50004 | |
| Number of page(s) | 7 | |
| Section | General | |
| DOI | https://doi.org/10.1209/0295-5075/115/50004 | |
| Published online | 13 October 2016 | |
Frequency spectrum of a superconducting metadevice
1 Physics and Computer Science, Wilfrid Laurier University - Waterloo, Ontario, Canada
2 Dipartimento di Fisica and MINAS-Lab, Università di Roma “Tor Vergata” - 00133 Roma, Italy
3 Department of Mathematics, University of California - Davis, CA 95616, USA
4 Department of Mechanical and Aerospace Engineering, University of California - Davis, CA 95616, USA
Received: 23 August 2016
Accepted: 22 September 2016
We report on a systematic analysis of the frequency spectrum of a system often considered for quantum computing purposes, metadevice applications, and high-sensitivity sensors, namely a superconducting loop interrupted by Josephson junctions, the core of an rf-SQUID. We analyze both the cases in which a single junction closes the superconducting loop and the one in which the single junction is replaced by a superconducting interferometer. Perturbation analysis is employed to display the variety of the solutions of the system and the implications of the results for the present interest in fundamental and applied research are analyzed.
PACS: 03.67.Lx – Quantum computation architectures and implementations / 74.50.+r – Tunneling phenomena; Josephson effects / 85.25.Cp – Josephson devices
© EPLA, 2016
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