Fano-type interference in quantum dots coupled between metallic and superconducting leads

Details Fano-type interference in quantum dots coupled between metallic and superconducting leads Fano-type interference in quantum dots coupled between metallic and superconducting leads

2011-07-21

arxiv.org/abs/1107.4285v2

Phys. Rev. B 84, 195424 (2011)

Physics

Condensed Matter

Strongly Correlated Electrons

7 pages, 7 figures

Scientific paper

10.1103/PhysRevB.84.195424

We analyze the quantum interference effects appearing in the charge current through the double quantum dots coupled in T-shape configuration to an isotropic superconductor and metallic lead. Owing to proximity effect the quantum dots inherit a pairing which has the profound influence on nonequilibrium charge transport, especially in the subgap regime |eV| < Delta. We discuss under what conditions the Fano-type lineshapes might appear in such Andreev conductance and consider a possible interplay with the strong correlation effects.

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