论文标题
在相互作用的量子点中创建和检测穷人的主要界面状态
Creating and detecting poor man's Majorana bound states in interacting quantum dots
论文作者
论文摘要
我们提出并理论上研究了一种创建物理中引入的穷人的主要界限（MBS）的替代方法。 Rev. B 86，134528（2012）。我们的建议基于两个量子点（QD），具有较强的电子电子相互作用，这些相互作用通过中央QD与接近性诱导的超导性。在存在自旋轨道耦合和磁场的情况下，所有三个QD的栅极控制允许将系统调整为在每个外点上位于一个MB的甜点中。我们量化了这些MBS的质量，并显示了它如何取决于Zeeman的能量和相互作用强度。我们还展示了如何使用非局部传输光谱来识别具有高MBS质量的甜点。我们的结果为研究MBS物理学的途径提供了一条途径，该物理在没有困扰其他平台的许多疑问和不确定性的环境中。
We propose and theoretically investigate an alternative way to create the poor man's Majorana bound states (MBSs) introduced in Phys. Rev. B 86, 134528 (2012). Our proposal is based on two quantum dots (QDs) with strong electron-electron interactions that couple via a central QD with proximity-induced superconductivity. In the presence of spin-orbit coupling and a magnetic field, gate control of all three QDs allows tuning the system into sweet spots with one MBS localized on each outer dot. We quantify the quality of these MBSs and show how it depends on the Zeeman energy and interaction strength. We also show how nonlocal transport spectroscopy can be used to identify sweet spots with high MBS quality. Our results provide a path for investigating MBS physics in a setting that is free of many of the doubts and uncertainties that plague other platforms.
