论文标题
Majorana模式的动态泄漏到侧连接的量子点
Dynamical leakage of Majorana mode into side-attached quantum dot
论文作者
论文摘要
我们研究了一个杂种结构，包括附着在拓扑超导纳米线上的单层量子点，检查了主要的六孢子虫向正常区域的动态转移。由于在固定条件下对这种异质结构的最新实验实现及其研究的动机[L. Schneider等人，https：//doi.org/10.1038/s41467-020-18540-3，自然通信11，4707（2020）]，其中量子点能级可以按门电位调整量子点能量水平，我们检查我们需要多少时间才能渗入正常区域。我们估计，对于典型的杂种结构，这种动力学过程将需要约20纳秒。我们提出了一种可行的经验方案，用于通过时间分辨的Andreev隧道光谱法检测。
We study a hybrid structure, comprising the single-level quantum dot attached to the topological superconducting nanowire, inspecting dynamical transfer of the Majorana quasiparticle onto normal region. Motivated by the recent experimental realization of such heterostructure and its investigation under the stationary conditions [L. Schneider et al., https://doi.org/10.1038/s41467-020-18540-3, Nature Communications 11, 4707 (2020)] where the quantum dot energy level can be tuned by gate potential we examine how much time is needed for the Majorana mode to leak into the normal region. We estimate, that for typical hybrid structures this dynamical process would take about 20 nanoseconds. We propose a feasible empirical protocol for its detection by means of the time-resolved Andreev tunneling spectroscopy.
