Josephson current through a quantum dot molecule with a Majorana zero mode and Andreev bound states

被引：3
|
作者：
Tang, Han-Zhao [1 ,2 ]
Zhang, Ying-Tao [2 ]
Liu, Jian-Jun [2 ,3 ]
机构：
[1] Shijiazhuang Tiedao Univ, Dept Math & Phys, Shijiazhuang 050043, Hebei, Peoples R China
[2] Hebei Normal Univ, Coll Phys, Shijiazhuang 050024, Hebei, Peoples R China
[3] Shijiazhuang Univ, Phys Dept, Shijiazhuang 050035, Hebei, Peoples R China
来源：
PHYSICS LETTERS A | 2018年 / 382卷 / 14期
基金：
中国国家自然科学基金;
关键词：
Majorana zero mode; Andreev bound state; Josephson current; FERMIONS;
D O I：
10.1016/j.physleta.2018.02.004
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Based on the Green's function method, we investigate the interplay between Majorana zero mode (MZM) and Andreev bound states (ABSs) in a quantum dot molecule side coupled to a topological superconducting nanowire with a pair of MZMs forming a Josephson junction. Since the strong electron-hole asymmetry induced by the nanowire with a topologically non-trivial phase, the MZM suppress the ABSs. The suppression induced by the MZM is robust against the Coulomb repulsion. The interplay between the MZM and the ABSs in Josephson junction presents a feasible experimental means for distinguish between the presence of MZM and ABSs. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：991 / 994
页数：4
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