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arXiv · 1404.5654

Full counting statistics of interacting quantum dots contacted by a normal metal and a superconductor

H. Soller·A. Komnik
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Abstract

We investigate the effects of Coulomb interaction on charge transfer through a quantum dot attached to a normal and a superconducting lead. While for voltages much larger than the gap we recover the usual result for normal conductors, for voltages much smaller than the gap superconducting correlations lead to a drastically different behavior. Especially, the usual charge doubling in the normal case is reflected in the occurence of quartets due to the onsite interaction.

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H. Soller, A. Komnik. 2014-04-22. Full counting statistics of interacting quantum dots contacted by a normal metal and a superconductor. https://doi.org/10.1209/0295-5075%2F106%2F37009

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