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Published on: October 13, 2017
Suppression of shot noise in a spin-orbit coupled quantum dot
Zhimei Wang1, Lijun Mao1, Naitao Xue1
1Department of Physics, Taiyuan Normal University, Jinzhong, Shanxi 030619, People's Republic of China.
Abstract:
We study theoretically the transport properties of electrons in a quantum dot system with spin-orbit coupling. By using the quantum master equation approach, the shot noise and skewness of the transport electrons are calculated. We obtain super-Poisson noise behaviour by investigating the full counting statistics of the transport system. We discover super-Poisson behaviour is more obvious with the spin polarization increasing. More importantly, we discover the suppression of shot noise induced by spin-orbit coupling. The value of shot noise is gradually decreasing when spin-orbit coupling strength increases.
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