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题名: Tunneling transport through superconducting wires with Majorana bound states
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
学科分类: Physics
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.
部门归属: [Wu, B. H.; Cao, J. C.] Chinese Acad Sci, Lab Solid State Terahertz Technol, Shanghai Inst Microsyst & Informat Technol, Shanghai 200050, Peoples R China; [Wu, B. H.] Chinese Acad Sci, Kavli Inst Theoret Phys China, Beijing 100190, 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.
资助者: 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]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000300090800003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15164
Appears in Collections:理论物理所2012年知识产出_期刊论文

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Recommended Citation:
Wu, BH,Cao, JC. Tunneling transport through superconducting wires with Majorana bound states[J]. PHYSICAL REVIEW B,2012,85(8):85415.
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