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

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

References in corpus (25)

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Cited by in corpus (5)

• Short-time counting statistics of charge transfer in Coulomb-blockade systems
• Double quantum dot Cooper-pair splitter at finite couplings
• Finite-frequency noise in a quantum dot with normal and superconducting leads
• How long does it take to form the Andreev quasiparticles ?
• Fractional Josephson effect versus fractional charge in superconducting-normal metal hybrid circuits