Maximal positive cross shot noise from Andreev reflection
arXiv:0905.4695 · doi:10.1103/PhysRevB.79.245408
Abstract
The current flowing from a superconductor to a two-terminal setup describing a nanostructure connected to normal-metal leads is studied. We provide an example of scattering matrix giving ideal splitting off electrons from a Cooper pair by means of Cauchy-Bunyakovsky-Schwarz inequality. The proposal of the junction and its possible variants are discussed in a context of possible experiments.
10 pages, 11 figures, to be published in PRB