论文标题

在一个主要的超导岛中

Double Fu-teleportation and anomalous Coulomb blockade in a Majorana-hosted superconducting island

论文作者

Hao, Yiru, Zhang, Gu, Liu, Donghao, Liu, Dong E.

论文摘要

我们研究了基于主要的超导岛的库仑封锁峰电导的温度依赖性。在低温方向上,我们发现了一个连贯的双重fu-teportation(FT)过程,其中任何独立的隧道过程始终涉及两个连贯的FT;而且我们还发现了一种异常的通用缩放行为,该行为显示了从[max(t,ev)]^6到[max(t,ev)]^3电导行为的转变,作为增加的能量尺度。在高温方向上,使用熟悉的速率方程方法,我们发现电导与温度的倒数成正比,并显示非单调温度依赖性。异常的幂律行为和非单调温度依赖性都可以与传统的库仑块中的电导峰区分开,因此是拓扑超导岛非本地运输的标志。

We study the temperature dependence of Coulomb Blockade peak conductance based on a Majorana-hosted superconducting island. In the low-temperature regime, we discover a coherent double Fu-teleportation (FT) process, where any independent tunneling process always involves two coherent FTs; and we also find an anomalous universal scaling behavior, which shows a transition from a [max(T,eV)]^6 to a [max(T,eV)]^3 conductance behavior as increasing energy scale. In the high-temperature regime, using the familiar rate equation method, we find that the conductance is proportional to the reciprocal of the temperature and shows a non-monotonic temperature-dependence. Both the anomalous power-law behavior and non-monotonic temperature-dependence can be distinguished from the conductance peak in the traditional Coulomb block, and therefore, serve as a hallmark for the non-local transport in the topological superconducting island.

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