Fano effect of a strongly interacting quantum dot in contact with a superconductor

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Abstract

The physics of a system consisting of an Aharonov-Bohm (AB) interferometer with a single-level interacting quantum dot (QD) on one of its arms, and attached to normal (N) and superconducting (S) leads is elucidated. Here the focus is directed mainly on N-AB-S junctions but the theory is capable of studying S-AB-S junctions as well. The interesting physics emerges under the conditions that both the Kondo effect in the QD and the the Fano effect are equally important. As the Fano effect becomes more dominant, the conductance of the junction is suppressed.

Original languageEnglish
Article number165325
Pages (from-to)165325-1-165325-4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number16
DOIs
StatePublished - 1 Apr 2004

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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