Pumped shot noise in adiabatically modulated graphene-based double-barrier structures
Mesoscale and Nanoscale Physics
2015-05-28 v1
Abstract
Quantum pumping processes are accompanied by considerable quantum noise. We investigated the pumped shot noise (PSN) properties in adiabatically modulated graphene-based double-barrier structures. General expressions for adiabatically PSN in phase-coherent mesoscopic conductors are derived based on the scattering approach. It is found that comparing with the Poisson processes, the PSN is dramatically enhanced where the dc pumped current changes flow direction, which demonstrates the effect of the Klein paradox.
Keywords
Cite
@article{arxiv.1107.4412,
title = {Pumped shot noise in adiabatically modulated graphene-based double-barrier structures},
author = {Rui Zhu and Maoli Lai},
journal= {arXiv preprint arXiv:1107.4412},
year = {2015}
}