论文标题

传统配对对称性的时间反向对称拓扑超导阶段的分类

Classification of time-reversal symmetric topological superconducting phases for conventional pairing symmetries

论文作者

Ono, Seishiro, Shiozaki, Ken, Watanabe, Haruki

论文摘要

基于最近开发的框架,我们进行了与常规配对对称性的时间反转对称拓扑超导体的分类。我们的真实空间方法阐明了非平凡阶段边界模式的性质。拓扑结晶绝缘子的计算与计算的主要区别源于几个二维拓扑超导体的界面上涡流零模式的出现。我们发现,在所有杆组,所有层组和230个空间组中,我们的分类均以$ k $的理论意义完成。我们的结果为超导体提供了新的灯光,并以常规配对作为拓扑超导体的候选者。

Based on a recently developed framework, we conduct classifications of time-reversal symmetric topological superconductors with conventional pairing symmetries. Our real-space approach clarifies the nature of boundary modes in nontrivial phases. The key difference from the calculations for topological crystalline insulators originates from the appearance of vortex zero modes on the interface of several two-dimensional topological superconductors. We find that our classification is complete in the $K$-theory sense for all rod groups, all layer groups, and 159 out of 230 space groups. Our results shed new light on superconductors with conventional pairing as candidates for topological superconductors.

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