Odd-even effect of transport through a chain of Majorana bound states in a T-shaped junction

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	Odd-even effect of transport through a chain of Majorana bound states in a T-shaped junction
	Gong, WJ ; Wu, BH ; Zhang, SF ; Zheng, YS
刊名	EPL
	2014
卷号	106 期号:3
ISSN号	0295-5075
通讯作者	Gong, WJ (reprint author), Northeastern Univ, Coll Sci, Shenyang 110004, Peoples R China.
中文摘要	We investigate the transport characteristics of a chain of Majorana bound states (MBSs) in a T-shaped junction, where two normal leads are coupled to the same terminate MBS. We find the apparent odd-even effect in the transport process. Namely, when the MBS number is odd, the conductance spectrum exhibits a peak in the zero-bias limit. Besides, the shot noise Fano factor in the zero-bias limit (F-0) and the conductance maximum (G(max)) are related by equation F-0 = 1 - 1/2T(max) with G = e(2)/h T. Otherwise, in the case of even-numbered MBSs, at the zero-bias limit, the conductance encounters its zero value, and the relation between F-0 and G(max) changes as F-0 = 1 + 1/2T(max). Further investigation shows that these two kinds of relations are caused by the different interplay mechanisms between the crossed Andreev reflection and the local Andreev reflection. In addition, it is observed that the fluctuation of the inter-MBS couplings contributes little to the transport results. We ascertain that these results are helpful for understanding the MBS signature in transport spectra. Copyright (C) EPLA, 2014
资助信息	Fundamental Research Funds for the Central Universities [N130505001, 13D110912]; Natural Science Foundation of Liaoning province of China [2013020030]; Liaoning BaiQianWan Talents Program [2012921078]; Natural Science Foundation of China [11074266]
语种	英语
公开日期	2015-04-14
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/59068]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Gong, WJ,Wu, BH,Zhang, SF,et al. Odd-even effect of transport through a chain of Majorana bound states in a T-shaped junction[J]. EPL,2014,106(3).
APA	Gong, WJ,Wu, BH,Zhang, SF,&Zheng, YS.(2014).Odd-even effect of transport through a chain of Majorana bound states in a T-shaped junction.EPL,106(3).
MLA	Gong, WJ,et al."Odd-even effect of transport through a chain of Majorana bound states in a T-shaped junction".EPL 106.3(2014).