论文标题

由Majorana State的非局部性引起的Fano共振的崩溃

Collapse of the Fano Resonance Caused by the Nonlocality of the Majorana State

论文作者

Aksenov, S. V., Kagan, M. Yu.

论文摘要

Majoraana状态的主要特征之一是在固态系统中吸引这些激发的当前兴趣,与其非局部性有关。证明这种非局部性的直接后果是在不对称干扰装置的电导率中表现出的Fano共振的崩溃,其臂的臂是由一维拓扑超导体连接的。在无旋模模型的框架中,这表明预测效应与在Kitaev模型的特定情况下产生的结构的零能状态的变性增加有关。这样的增加导致在连续体中形成结合状态。

One of the main features of the Majorana state, which attracts a considerable current interest to these excitations in solid-state systems, is related to its nonlocal character. It is demonstrated that the direct consequence of such nonlocality is the collapse of the Fano resonance manifesting itself in the conductance of an asymmetric interference device, the arms of which are connected by a one-dimensional topological superconductor. In the framework of the spinless model, it is shown that the predicted effect is associated with an increase in the multiplicity of the degeneracy of the zero-energy state of the structure arising at a specific case of the Kitaev model. Such an increase leads to the formation of a bound state in the continuum.

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