Full counting statistics of interacting quantum dots contacted by a normal metal and a superconductor
arXiv:1404.5654 · doi:10.1209/0295-5075/106/37009
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.
6 pages, 3 figures, accepted by EPL
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