Noise in superconductor-quantum dot-normal metal structures in the Kondo regime

Details Noise in superconductor-quantum dot-normal metal structures in the Kondo regime Noise in superconductor-quantum dot-normal metal structures in the Kondo regime

2009-12-11

arxiv.org/abs/0912.2235v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

We consider a N-dot-S junction in the Kondo regime in the limit where the superconducting gap is much smaller than the Kondo temperature. A generalization of the floating of the Kondo resonance is proposed and many body corrections to the average subgap current are calculated. The zero frequency noise is computed and the Fano factor sticks to the value 10/3 for all voltages below the gap. Implications for finite frequency noise are briefly discussed.

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