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  • We study the spectral properties of a quantum dot embedded between two superconductors showing a phase difference. The system is described as a single-impurity Anderson model coupled to BCS superconducting leads. We utilize diagrammatic perturbation techniques in the Coulomb interaction to capture the relevant physical phenomena, particularly the effect of Coulomb interaction on the Andreev bound states present in the electronic spectrum. Results of the Hartree - Fock approximation and the random phase approximation at zero temperature are presented.
  • We study the spectral properties of a quantum dot embedded between two superconductors showing a phase difference. The system is described as a single-impurity Anderson model coupled to BCS superconducting leads. We utilize diagrammatic perturbation techniques in the Coulomb interaction to capture the relevant physical phenomena, particularly the effect of Coulomb interaction on the Andreev bound states present in the electronic spectrum. Results of the Hartree - Fock approximation and the random phase approximation at zero temperature are presented. (en)
Title
  • Diagrammatic perturbation technique for a quantum dot connected to superconducting leads
  • Diagrammatic perturbation technique for a quantum dot connected to superconducting leads (en)
skos:prefLabel
  • Diagrammatic perturbation technique for a quantum dot connected to superconducting leads
  • Diagrammatic perturbation technique for a quantum dot connected to superconducting leads (en)
skos:notation
  • RIV/68378271:_____/14:00430517!RIV14-GA0-68378271
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  • I, P(GCP204/11/J042)
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  • 11213
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  • RIV/68378271:_____/14:00430517
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  • superconductivity; quantum dots; perturbation expansion; Josephson junction (en)
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  • [42B39F9C2C97]
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  • Košice
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  • Warsaw
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  • Acta Physica Polonica A, 2014, č. 1
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  • Janiš, Václav
  • Pokorný, Vladislav
  • Novotný, T.
  • Žonda, M.
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issn
  • 1898-794X
number of pages
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  • 10.12693/APhysPolA.126.352
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  • Polska Akademia Nauk
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