中文摘要：

我们调查一个戒指系统联合到在一个维的拓扑的超导体 nanowire 的结束限制的二个 Majorana 界限状态的一个量点(QD ) 填写了的电子运输里面。由调节通过戒指穿的磁性的流动，当 nanowire 在它的拓扑的阶段时，我们考虑的模型系统能被交换进状态与或没有零精力的模式。我们发现在传导力光谱的 Fano 侧面为这二种不同状况由于在界限和连续统状态之间的干扰展出显著地不同的特征，它能因而被用来检测 Majorana 零精力的模式。作为磁性的流动的一个周期的函数，最有趣地，传导力看 2 频率二个 Majorana 界限状态什么时候是 nonoverlapping (是在无穷地长的 nanowire ) 但是当重叠成为非零时，显示 4 频率(作为在有限长度 nanowire ) 。我们在 Majorana 费米子表示印射模型系统进一枚 QD-Kitaev 戒指并且由检查精力光谱肯定这些不同特征。

英文摘要：

We investigate electron transport inside a ring system composed of a quantum dot （QD） coupled to two Majorana bound states confined at the ends of a one-dimensional topological superconductor nanowire. By tuning the magnetic flux threading through the ring, the model system we consider can be switched into states with or without zero-energy modes when the nanowire is in its topological phase. We find that the Fano profile in the conductance spectrum due to the interference between bound and continuum states exhibits markedly different features for these two different situations, which consequently can be used to detect the Majorana zero-energy mode. Most interestingly, as a periodic function of magnetic flux, the conductance shows 2π periodicity when the two Majorana bound states are nonoverlapping （as in an infinitely long nanowire） but displays 4π periodicity when the overlapping becomes nonzero （as in a finite length nanowire）. We map the model system into a QD-Kitaev ring in the Majorana fermion representation and affirm these different characteristics by checking the energy spectrum.