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Tunneling transport through superconducting wires with Majorana bound states

文献类型：期刊论文

作者Wu, BH ; Cao, JC
刊名PHYSICAL REVIEW B
出版日期2012
卷号85期号:8页码:85415
关键词QUANTUM POINT CONTACTS SHOT-NOISE
ISSN号1098-0121
通讯作者Wu, BH (reprint author), Chinese Acad Sci, Lab Solid State Terahertz Technol, Shanghai Inst Microsyst & Informat Technol, 865 Changning Rd, Shanghai 200050, Peoples R China.
英文摘要We investigate the transport of a topological superconducting wire hosting a pair of Majorana bound states between two normal leads. Both the model-independent scattering matrix theory and the Green's function method for a tight-binding model show that the transport properties are sensitive to the coupling configurations. Unlike the single-lead situation, the differential conductance peak fixes at zero bias until the coupling between the two Majorana bound states exceeds a critical value, which is determined by the coupling strengths to the leads. While the current noise Fano factor for single-lead devices reaches 2 at low bias due to the resonant Andreev reflection, it is significantly reduced by a finite though small coupling to the second lead. These observations provide clear transport signatures of Majorana bound states for different coupling configurations.
学科主题Physics
收录类别SCI
资助信息Natural Science Foundation of China [11074266, 61131006, 60721004]; Important National Science and Technology Specific Projects [2011ZX02707]; CAS; Shanghai Municipal Commission of Science and Technology [10JC1417000]; [YYYJ-1123-1]
原文出处http://dx.doi.org/10.1103/PhysRevB.85.085415
语种英语
WOS记录号WOS:000300090800003
公开日期2014-04-25
源URL[http://ir.itp.ac.cn/handle/311006/15164]  
专题理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式
GB/T 7714		 Wu, BH,Cao, JC. Tunneling transport through superconducting wires with Majorana bound states[J]. PHYSICAL REVIEW B,2012,85(8):85415.
APA Wu, BH,&Cao, JC.(2012).Tunneling transport through superconducting wires with Majorana bound states.PHYSICAL REVIEW B,85(8),85415.
MLA Wu, BH,et al."Tunneling transport through superconducting wires with Majorana bound states".PHYSICAL REVIEW B 85.8(2012):85415.

入库方式： OAI收割

来源：理论物理研究所

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