Full counting statistics of transport electrons through a two-level quantum dot with spin–orbit coupling

2015 ◽  
Vol 353 ◽  
pp. 9-18 ◽  
Author(s):  
Z.M. Wang ◽  
H.B. Xue ◽  
N.T. Xue ◽  
J.-Q. Liang
Keyword(s):  
Quantum Dot ◽  
Orbit Coupling ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Full Counting Statistics ◽  
Counting Statistics

scholarly journals Suppression of shot noise in a spin–orbit coupled quantum dot

2021 ◽  
Vol 8 (4) ◽  
Author(s):  
Zhimei Wang ◽  
Lijun Mao ◽  
Naitao Xue ◽  
Wenting Lu
Keyword(s):  
Quantum Dot ◽  
Shot Noise ◽  
Orbit Coupling ◽  
Quantum Master Equation ◽  
Spin Orbit Coupling ◽  
Spin Orbit ◽  
Equation Approach ◽  
Full Counting Statistics ◽  
Master Equation Approach ◽  
Counting Statistics

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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