马约拉纳费米子-量子点杂化系统输运性质的研究

The Study of the Transport Properties of the Majorana Fermion-quantum Dot Hybrid System

从理论上研究马约拉纳费米子-量子点杂化系统的输运性质.基于广义主方程方法,计算通过此系统的电流、微分电导和Fano因子.计算结果表明:马约拉纳费米子与量子点中电子的耦合导致系统的零偏置反常,而2个马约拉纳费米子的耦合压制系统的零偏置反常.

We theoretically investigate the effect of the Majorana fermion on the transport properties through quantum dot hybrid system. With the framework of the generalized master equation method, we analyze the current through system, differential conductance and Fano factor as a function of bias. Our results reveal that the coupling of the Majorana fermion and electrons on the quantum dot can lead to a zero - bias anomaly, while the coupling of the two Majorana fermion inhibits the zero-bias anomaly, and relevant underlying physics problems is discussed.