论文标题
Majorana角落在一个吸引人的量子旋转厅绝缘子中，在两个Sublattice站点的平面内Zeeman Energy
Majorana corner states in an attractive quantum spin Hall insulator with opposite in-plane Zeeman energy at two sublattice sites
论文作者
论文摘要
高阶拓扑超导体和超流体自新的拓扑展览展览以来，具有较低维度的主要角度和铰链状态。尽管已经广泛探索了这种拓扑非平凡的阶段，但对于Majorana的工程态度来说，更多可能的方案是必要的。在本文中，我们提出了Majoraana角状态，可以在两个sublattice遗址的二维有吸引力的量子旋转式绝缘子中实现。适当的Zeeman田地导致相反的狄拉克质量，用于平方样品的相邻边缘，并且自然诱发Majoraana角状态。这个拓扑阶段可以以Majorana边缘极化为特征，并且只要边缘差距保持开放，它就可以在随机电位上进行扰动。我们的工作提供了一种新的可能性，可以在二维和工程师Majoraana角状态下实现二阶拓扑超流体。
Higher-order topological superconductors and superfluids host lower-dimensional Majorana corner and hinge states since novel topology exhibitions on boundaries. While such topological nontrivial phases have been explored extensively, more possible schemes are necessary for engineering Majorana states. In this paper we propose Majorana corner states could be realized in a two-dimensional attractive quantum spin-Hall insulator with opposite in-plane Zeeman energy at two sublattice sites. The appropriate Zeeman field leads to the opposite Dirac mass for adjacent edges of a square sample, and naturally induce Majorana corner states. This topological phase can be characterized by Majorana edge polarizations, and it is robust against perturbations on random potentials as long as the edge gap remains open. Our work provides a new possibility to realize a second-order topological superfluid in two dimensions and engineer Majorana corner states.
