Wireless Majorana Bound States: From Magnetic Tunability to Braiding

被引：60
|
作者：
Fatin, Geoffrey L. [1 ]
Matos-Abiague, Alex [1 ]
Scharf, Benedikt [1 ]
Zutic, Igor [1 ]
机构：
[1] Univ Buffalo State Univ New York, Dept Phys, Buffalo, NY 14260 USA
来源：
PHYSICAL REVIEW LETTERS | 2016年 / 117卷 / 07期
基金：
美国国家科学基金会;
关键词：
NON-ABELIAN STATISTICS; TOPOLOGICAL SUPERCONDUCTOR; QUANTUM COMPUTATION; FERMIONS; NANOWIRE; LOCALIZATION; SPINTRONICS; INSULATORS; PARTICLES; SIGNATURE;
D O I：
10.1103/PhysRevLett.117.077002
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We propose a versatile platform to investigate the existence of Majorana bound states (MBSs) and their non-Abelian statistics through braiding. This implementation combines a two-dimensional electron gas formed in a semiconductor quantum well grown on the surface of an s-wave superconductor with a nearby array of magnetic tunnel junctions (MTJs). The underlying magnetic textures produced by MTJs provide highly controllable topological phase transitions to confine and transport MBSs in two dimensions, overcoming the requirement for a network of wires. Obtained scaling relations confirm that various semiconductor quantum well materials are suitable for this proposal.
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页数：6
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