论文标题
具有远距离跳跃和配对术语的二聚体基塔夫链的拓扑特性
Topological properties of the dimerized Kitaev chain with long-range hopping and pairing terms
论文作者
论文摘要
我们研究了具有远距离相互作用的二聚体Kitaev链的拓扑特性，包括Intercell跳和超导配对项。发现甚至只有在出现互球跳跃期间，能量差距的大小，拓扑阶段的比例和拓扑相变的大小才能进行调制。值得注意的结果是，它们导致了新的吉塔夫（Kitaev）阶段，这是由两倍成绩的零能量边缘状态所带来的。接下来，在互层超导配对项的情况下，这种主要相位可以放大。这项工作提供了新的建议，可以根据二聚kitaev链的间跳和超导配对项来实现双重变性的主要模式。
We investigate the topological properties of a dimerized Kitaev chain with long-range interactions, including the intercell hopping and superconducting pairing terms. It is found that even only when the intercell hopping term appears, the size of the energy gap, the proportion of topological phases, and the topological phase transition can be modulated. The notable result is that they lead to a new Kitaev-like phase featured by the twofold-degenerated Majorana zero-energy edge states. Next in the presence of the intercell superconducting pairing term, this kind of Majorana phase can be magnified. This work provides new proposals to realize the twofold degenerated Majorana modes based on the intercell hopping and superconducting pairing terms of the dimerized Kitaev chain.
