title: Finite-time full counting statistics and factorial cumulants for transport through a quantum dot with normal and superconducting leads.
abstract: We study the finite-time full counting statistics for subgap transport through a single-level quantum dot tunnel-coupled to one normal and one superconducting lead. In particular, we determine the factorial and the ordinary cumulants both for finite times and in the long-time limit. We find that the factorial cumulants violate the sign criterion, indicating a non-binomial distribution, even in absence of Coulomb repulsion due to the presence of superconducting correlations. At short times the cumulants exhibit oscillations which are a signature of the coherent transfer of Cooper pairs between the dot and the superconductor.
authors.affiliation: School of Chemical and Physical Sciences and Mac Diarmid Institute for Advanced Materials and Nanotechnology, Victoria University of Wellington, PO Box 600, Wellington 6140, New Zealand.
authors.forename: Stephanie
authors.initials: S
authors.lastname: Droste
authors.forename: Michele
authors.initials: M
authors.lastname: Governale