Elementary Andreev Processes in a Driven Superconductor-Normal Metal Contact
Mesoscale and Nanoscale Physics
2015-09-30 v1 Superconductivity
Abstract
We investigate the full counting statistics of a voltage-driven normal metal(N)-superconductor(S) contact. In the low-bias regime below the superconducting gap, the NS contact can be mapped onto a purely normal contact, albeit with doubled voltage and counting fields. Hence in this regime the transport characteristics can be obtained by the corresponding substitution of the normal metal results. The elementary processes are single Andreev transfers and electron- and hole-like Andreev transfers. Considering Lorentzian voltage pulses we find an optimal quantization for half-integer Levitons.
Keywords
Cite
@article{arxiv.1508.07039,
title = {Elementary Andreev Processes in a Driven Superconductor-Normal Metal Contact},
author = {Wolfgang Belzig and Mihajlo Vanevic},
journal= {arXiv preprint arXiv:1508.07039},
year = {2015}
}
Comments
8 pages, 6 figures, contribution to the special issue in memory of Markus B\"uttiker, accepted at Physica E