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- Title
Charge–Phase Duality and Cotunneling of Fluxons in SQUID-like Nanorings.
- Authors
Latyshev, Alex; Semenov, Andrew G.; Zaikin, Andrei D.
- Abstract
Employing charge–flux duality for Josephson junctions and superconducting nanowires, we predict a novel effect of fluxon cotunneling in SQUID-like nanorings. This process is strictly dual to that of Cooper pair cotunneling in superconducting transistors formed by a pairs of Josephson tunnel junctions connected in series. Cooper pair cotunneling is known to lift Coulomb blockade in these structures at low temperatures. Likewise, fluxon cotunneling may eliminate the magnetic blockade of superconducting phase fluctuations in SQUID-like nanorings, driving them into an insulating state.
- Subjects
SUPERCONDUCTING quantum interference devices; COOPER pair; COULOMB blockade; JOSEPHSON junctions; LOW temperatures; NANOWIRES
- Publication
Condensed Matter, 2023, Vol 8, Issue 1, p5
- ISSN
2410-3896
- Publication type
Article
- DOI
10.3390/condmat8010005