Charge–Phase Duality and Cotunneling of Fluxons in SQUID-like Nanorings
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 junction...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Condensed Matter |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2410-3896/8/1/5 |
| _version_ | 1827750421148467200 |
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| author | Alex Latyshev Andrew G. Semenov Andrei D. Zaikin |
| author_facet | Alex Latyshev Andrew G. Semenov Andrei D. Zaikin |
| author_sort | Alex Latyshev |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-11T06:43:08Z |
| format | Article |
| id | doaj.art-c4ecbbcbf0474185bcc17b4ed4194142 |
| institution | Directory Open Access Journal |
| issn | 2410-3896 |
| language | English |
| last_indexed | 2024-03-11T06:43:08Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Condensed Matter |
| spelling | doaj.art-c4ecbbcbf0474185bcc17b4ed41941422023-11-17T10:26:42ZengMDPI AGCondensed Matter2410-38962022-12-0181510.3390/condmat8010005Charge–Phase Duality and Cotunneling of Fluxons in SQUID-like NanoringsAlex Latyshev0Andrew G. Semenov1Andrei D. Zaikin2Departement de Physique Theorique, Universite de Geneve, CH-1211 Geneve, SwitzerlandNational Research University Higher School of Economics, 101000 Moscow, RussiaNational Research University Higher School of Economics, 101000 Moscow, RussiaEmploying 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.https://www.mdpi.com/2410-3896/8/1/5charge–flux dualityJosephson junctionquantum phase slipscotunneling |
| spellingShingle | Alex Latyshev Andrew G. Semenov Andrei D. Zaikin Charge–Phase Duality and Cotunneling of Fluxons in SQUID-like Nanorings Condensed Matter charge–flux duality Josephson junction quantum phase slips cotunneling |
| title | Charge–Phase Duality and Cotunneling of Fluxons in SQUID-like Nanorings |
| title_full | Charge–Phase Duality and Cotunneling of Fluxons in SQUID-like Nanorings |
| title_fullStr | Charge–Phase Duality and Cotunneling of Fluxons in SQUID-like Nanorings |
| title_full_unstemmed | Charge–Phase Duality and Cotunneling of Fluxons in SQUID-like Nanorings |
| title_short | Charge–Phase Duality and Cotunneling of Fluxons in SQUID-like Nanorings |
| title_sort | charge phase duality and cotunneling of fluxons in squid like nanorings |
| topic | charge–flux duality Josephson junction quantum phase slips cotunneling |
| url | https://www.mdpi.com/2410-3896/8/1/5 |
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