Pumped shot noise in adiabatically modulated graphene-based double-barrier structures.
Quantum pumping processes are accompanied by considerable quantum noise. Based on the scattering approach, we investigated the pumped shot noise properties in adiabatically modulated graphene-based double-barrier structures. It is found that compared with the Poisson processes, the pumped shot noise is dramatically enhanced where the dc pumped current changes flow direction, which demonstrates the effect of the Klein paradox.
Department of Physics, South China University of Technology, Guangzhou 510641, People's Republic of China. rzhu@scut.edu.cn
Rui
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Zhu
Maoli
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Lai