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EnglishIn this paper, we propose a novel kind of Josephson Energy Suppression Pump (JESP) controlled by a fully magnetic flux drive. The device presented here is composed of two superconducting loops interrupted at one side by superconducting nanowires which are joined together by a superconducting island. The phase difference developed at the edges of the nanowires by means of the magnetic flux threading the loops can collapse their Cooper condensates, leading to complete suppression of the Josephson energies. This mechanism allows to greatly reduce the leakage current when performing Cooper pair pumping by a pure magnetic pumping cycle without involving any gate modulation. The pumping capability of the JESP is studied through a master equation approach in the non-adiabatic case.
Flux pumping of Cooper pairs through a Josephson Energy-Suppression Pump / Greco, Angelo; Fasolo, Luca; Marino, Vito; Enrico, Emanuele. - In: IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY. - ISSN 1051-8223. - ELETTRONICO. - 32:4(2022), p. 1800205. [10.1109/tasc.2021.3135231]
| Titolo: | Flux pumping of Cooper pairs through a Josephson Energy-Suppression Pump | |
| Autori: | ||
| Data di pubblicazione: | 2022 | |
| Rivista: | ||
| Digital Object Identifier (DOI): | http://dx.doi.org/10.1109/tasc.2021.3135231 | |
| Appare nelle tipologie: | 1.1 Articolo in rivista |
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| File | Descrizione | Tipologia | Licenza | |
|---|---|---|---|---|
| EUCAS_2021___IEEE_Transaction_on_Applied_Superconductivity___Flux_Pumping_of_Cooper_Pairs_through_a_Josephson_Energy_Suppression_Pump.pdf | Articolo principale | 2. Post-print / Author's Accepted Manuscript | PUBBLICO - Tutti i diritti riservati | Visibile a tuttiVisualizza/Apri |
| Flux_Pumping_of_Cooper_Pairs_Through_a_Josephson_Energy-Suppression_Pump.pdf | versione definitiva | 2a Post-print versione editoriale / Version of Record | Non Pubblico - Accesso privato/ristretto | Administrator Richiedi una copia |
http://hdl.handle.net/11583/2946692
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