期刊
PHYSICAL REVIEW B
卷 89, 期 24, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.89.245413
关键词
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资金
- 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]
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.
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