Phase- and spin-dependent manipulation of leakage of Majorana mode into double quantum dot*

Autor: Gan Ren, Lin-Guo Xie, Fu-Bin Yang
Rok vydání: 2021
Předmět:
Zdroj: Chinese Physics B. 30:078505
ISSN: 1674-1056
DOI: 10.1088/1674-1056/abe1a8
Popis: 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.
Databáze: OpenAIRE