arXivDaily arXiv每日学术速递 周一至周五更新
arXiv周末暂无论文更新,休息一下吧,周末愉快~~
arXiv 1909.04830cond-mat.mes-hall
收藏

连续介质中的Majorana束缚态:连续介质介导的Majorana束缚态与量子点的耦合

Majorana bound state in the continuum: Coupling between Majorana bound state and quantum dot mediated by continuum

J. P. Ramos-Andrade, P. A. Orellana, E. Vernek

摘要:

在这项工作中,我们考虑了位于拓扑超导纳米线(TSW)末端的单能级量子点(QD)和马约拉纳束缚态(MBS)。两者都耦合到连续统,它们之间没有直接的联系。我们讨论了在非相互作用和库仑阻塞机制下MBS泄漏现象的行为及其对量子点物理的影响。通过采用格林函数形式主义通过运动方程的过程中,我们计算的物理量的利益。我们的研究结果表明,MBS到连续态的泄漏是实现的,可以改变系统中的库仑阻塞的物理通过MBS和QD之间的连续介导耦合。作为一个主要的结果,我们发现了一个强大的和非平凡的机制,以实现在系统中的连续的束缚态。

英文摘要:

In this work, we consider a single-level quantum dot (QD) and a Majorana bound state (MBS) placed at the end of a topological superconducting nanowire (TSW). Both are coupled to the continuum and do not have a direct connection between them. We addressed the behavior of MBS leaking phenomena and its consequences into the QD physics in non-interacting and Coulomb blockade regime. By employing Green's function formalism via the equation of motion procedure, we calculate the physical quantities of interest. Our results show that the leakage of the MBS into the continuum state is achieved and can alter the physics of Coulomb blockade in the system through continuum-mediated coupling between MBS and QD. As a main consequence, we found a robust and non-trivial mechanism to accomplish a bound state in the continuum in the system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑