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Universal Mirror-Stacking Approach for Constructing Topological Bound States in the Continuum
- 发表刊物：Physical Review Letters
- 摘要：Bound states in the continuum (BICs) are counterintuitive localized states with eigenvalues embedded in the continuum of extended states. Recently, nontrivial band topology is exploited to enrich the BIC physics, resulting in topological BICs (TBICs) with extraordinary robustness against perturbations or disorders. Here, we propose a simple but universal mirror-stacking approach to turn nontrivial bound states of any topological monolayer model into TBICs. Physically, the mirror-stacked bilayer Hamiltonian can be decoupled into two independent subspaces of opposite mirror parities, each of ...
- 论文类型：期刊论文
- 卷号：130
- 期号：10
- 页面范围：106301
- 是否译文：否
- 发表时间：2023-03-10
