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Josephson Current through a Quantum Dot Connected with Superconducting Leads
Author
Source
Advances in Condensed Matter Physics
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-11-18
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
In this study, we consider the Josephson current in a system composed of a superconductor/quantum dot/superconductor junction.
In the model, the Coulomb interaction in the quantum dot is taken into consideration, and the Lacroix approximation is applied to study the electron correlation.
We derive Green’s function of the quantum dot by applying the Lacroix truncation.
Although the Andreev bound state does not occur in our formulations, the π-junction occurs for a restricted parameter range.
On comparing the Kondo temperature with that estimated by another method, it is found that our Lacroix approximation does not capture well the Kondo physics in the superconductor/quantum dot/superconductor junction.
American Psychological Association (APA)
Kawaguchi, Satoshi. 2019. Josephson Current through a Quantum Dot Connected with Superconducting Leads. Advances in Condensed Matter Physics،Vol. 2019, no. 2019, pp.1-16.
https://search.emarefa.net/detail/BIM-1117690
Modern Language Association (MLA)
Kawaguchi, Satoshi. Josephson Current through a Quantum Dot Connected with Superconducting Leads. Advances in Condensed Matter Physics No. 2019 (2019), pp.1-16.
https://search.emarefa.net/detail/BIM-1117690
American Medical Association (AMA)
Kawaguchi, Satoshi. Josephson Current through a Quantum Dot Connected with Superconducting Leads. Advances in Condensed Matter Physics. 2019. Vol. 2019, no. 2019, pp.1-16.
https://search.emarefa.net/detail/BIM-1117690
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1117690