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

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

2003-08-26

arxiv.org/abs/cond-mat/0308551v2

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, Talk to be given at the NATO Conference MQO, Bled, Slovenia 7-10 September 2003

Scientific paper

10.1103/PhysRevB.69.165325

The physics of a system consisting of an Aharonov Bohm (AB) interferometer containing a single level interacting quantum dot (QD) on one of its arms, and attached to normal (N) and superconducting (S) leads is studied and 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 comes into play under the conditions that both the Kondo effect in the QD and the the Fano effect are equally important.It is found the conductance of the junction is suppressed as the Fano effect becomes more dominant.

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