Majorana fermion induced nonlocal current correlations in spin-orbit coupled superconducting wires

被引：82

作者：

Liu, Jie ^{[1
,2
]}

Zhang, Fu-Chun ^{[1
,2
]}

Law, K. T. ^{[3
]}

机构：

[1] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China

[2] Univ Hong Kong, Ctr Theoret & Computat Phys, Hong Kong, Hong Kong, Peoples R China

[3] Hong Kong Univ Sci & Technol, Dept Phys, Hong Kong, Hong Kong, Peoples R China

来源：

PHYSICAL REVIEW B | 2013年 / 88卷 / 06期

关键词：

NON-ABELIAN STATISTICS; CONDUCTANCE; SIGNATURES; ELECTRONS;

D O I：

10.1103/PhysRevB.88.064509

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recent observation of zero bias conductance peaks in semiconductor wire/superconductor heterostructures has generated great interest, and there is a hot debate on whether the observation is associated with Majorana fermions (MFs). Here we study the local and crossed Andreev reflections of two normal leads attached to the two ends of a superconductor-semiconductor wire. We show that the MFs induced crossed Andreev reflections have significant effects on the shot noise of the device and strongly enhance the current-current correlations between the two normal leads. The measurements of shot noise and current-current correlations can be used to identify MFs.

引用

页数：7

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