Transport probe of the nonadiabatic transition caused by moving Majorana zero modes

Transport probe of the nonadiabatic transition caused by moving Majorana zero modes
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由移动马约拉纳零模式引起的非绝热转变的传输探测

DOI:
10.1103/physrevb.105.245410
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发表时间:
2021-11
期刊:
影响因子:
--
通讯作者:
Xin-Qi Li
Xin-Qi Li
中科院分区:
--
文献类型:
--
作者:
Luting Xu;Xin-Qi Li

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我们提出了一个传输探测方案来探测由移动的Majorana零模引起的非绝热跃迁。该方案进行了理论分析,通过一个含时的单电子波函数方法的量子输运。基于Kitaev模型,我们模拟了随时间变化的电流,并检验了利用电流来推断非绝热相变的可行性。特别是,我们开发了一种方法来确定的朗道-齐纳隧穿比的上下文中的运输,并将其与计算结果从相同的马约拉纳移动在孤立的量子线。所需的协议证明了整个拟议的计划。
We propose a transport probe scheme to detect the nonadiabatic transition caused by moving Majorana zero modes. The scheme is analyzed theoretically by means of a time-dependent single-electron-wave-function approach to quantum transport. Based on the Kitaev model, we simulate the time-dependent currents and examine the feasibility of using the currents to infer the nonadiabatic transition. In particular, we develop a method to determine the Landau-Zener tunneling ratio in the context of transport, and compare it with the result computed from the same Majorana moving in the isolated quantum wire. Desirable agreements are demonstrated for the whole proposed scheme.
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