Detection of a Majorana fermion zero mode by a T-shaped quantum-dot structure

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	Detection of a Majorana fermion zero mode by a T-shaped quantum-dot structure
	Gong, WJ ; Zhang, SF ; Li, ZC ; Yi, GY ; Zheng, YS
刊名	PHYSICAL REVIEW B
	2014
卷号	89 期号:24
ISSN号	1098-0121
通讯作者	Gong, WJ (reprint author), Northeastern Univ, Coll Sci, Shenyang 110819, Peoples R China.
中文摘要	We investigate the electron transport through the T-shaped quantum-dot (QD) structure theoretically, by coupling a Majorana zero mode to the terminal QD. It is found that in the double-QD configuration, the presence of the Majorana zero mode can efficiently dissolve the antiresonance point in the conductance spectrum while inducing a conductance peak to appear at the same energy position. In the case of asymmetric QD-lead coupling, such a valley-to-peak transition induced by the Majorana zero mode still exists. Next, we observe in the multi-QD case that at the zero-bias limit, the conductance values are always the same as the double-QD result, independent of the parity of the QD number. We believe that all these results can be helpful for understanding the properties of Majorana bound states.
资助信息	Natural Science Foundation of Liaoning province of China [2013020030]; Liaoning BaiQianWan Talents Program [2012921078]; Fundamental Research Funds for the Central Universities [N130505001]; National Natural Science Foundation of China [11074091, 91121011]
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/311004/59536]
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,Zhang, SF,Li, ZC,et al. Detection of a Majorana fermion zero mode by a T-shaped quantum-dot structure[J]. PHYSICAL REVIEW B,2014,89(24).
APA	Gong, WJ,Zhang, SF,Li, ZC,Yi, GY,&Zheng, YS.(2014).Detection of a Majorana fermion zero mode by a T-shaped quantum-dot structure.PHYSICAL REVIEW B,89(24).
MLA	Gong, WJ,et al."Detection of a Majorana fermion zero mode by a T-shaped quantum-dot structure".PHYSICAL REVIEW B 89.24(2014).