论文标题

主要分子及其光谱指纹

Majorana molecules and their spectral fingerprints

论文作者

Sanches, J. E., Ricco, L. S., Mizobata, W. N., Marques, Y., de Souza, M., Shelykh, I. A., Seridonio, A. C.

论文摘要

我们介绍了Majoraana分子的概念,这是一种拓扑结合状态,出现在双量子点(QD)结构的几何形状中,两侧是拓扑超导纳米线。我们证明,如果在两个探针实验中非局部对相反边缘的Majorana结合状态(MBS)进行探测,则系统的光谱密度揭示了所谓的半毛谱谱,而Andreev结合状态(ABSS)则分辨为键合和抗抗分子构型。我们揭示了这种效果是由于伪旋转超导配对通道之间的FANO干扰,并提出可以通过伪旋转扫描扫描隧道显微镜(STM)-TIP将其捕获。

We introduce the concept of a Majorana molecule, a topological bound state appearing in the geometry of a double quantum dot (QD) structure flanking a topological superconducting nanowire. We demonstrate that, if the Majorana bound states (MBSs) at opposite edges are probed nonlocally in a two probe experiment, the spectral density of the system reveals the so-called half-bowtie profiles, while Andreev bound states (ABSs) become resolved into bonding and antibonding molecular configurations. We reveal that this effect is due to the Fano interference between pseudospin superconducting pairing channels and propose that it can be catched by a pseudospin resolved Scanning Tunneling Microscope (STM)-tip.

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