Phase- and spin-dependent manipulation of leakage of Majorana mode into double quantum dot
Fu-Bin Yang(羊富彬)†, Gan Ren(任淦), and Lin-Guo Xie(谢林果)
Department of Physics and Key Laboratory of Photonic and Optical Detection in Civil Aviation, Civil Aviation Flight University of China, Guanghan 618307, China
Abstract We present a phase- and spin-dependent manipulation of leakage of a Majorana mode into a double quantum dot. We study the density of states (DOS) to show the effect of phase change factor on the Majorana leakage into (out) of a double quantum dot. The DOS is derived from the Green's function of the quantum dot by the equation of motion method, and exhibits a formant structure when φ=0,2π and a resonance shape when φ=0.5π and 1.5π. Also, it changes more strongly under the spin-polarized coefficient than the non-polarized lead. Such a theoretical model can be modified to explore the spin-dependent effect in the hybrid Majorana quantum dot system.
(Scattering by point defects, dislocations, surfaces, and other imperfections (including Kondo effect))
Fund: Project supported by the Science Foundation of Civil Aviation Flight University of China (Grant No. JG2019-19).
Corresponding Authors:
Fu-Bin Yang
E-mail: fbinyang@qq.com
Cite this article:
Fu-Bin Yang(羊富彬), Gan Ren(任淦), and Lin-Guo Xie(谢林果) Phase- and spin-dependent manipulation of leakage of Majorana mode into double quantum dot 2021 Chin. Phys. B 30 078505
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