Valley edge states as bound states in the continuum
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arXiv
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| Autores principales: | , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866909163273060352 |
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| author | Yin, Shunda Ye, Liping He, Hailong Huang, Xueqin Ke, Manzhu Deng, Weiyin Lu, Jiuyang Liu, Zhengyou |
| author_facet | Yin, Shunda Ye, Liping He, Hailong Huang, Xueqin Ke, Manzhu Deng, Weiyin Lu, Jiuyang Liu, Zhengyou |
| contents | Bound states in the continuum (BICs) are spatially localized states with energy embedded in the continuum spectrum of extended states. The combination of BICs physics and nontrivial band topology theory giving rise to topological BICs, which are robust against disorders and meanwhile of the merit of conventional BICs, is attracting wide attention recently. Here, we report valley edge states as topological BICs, which appear at domain wall between two distinct valley topological phases. The robustness of such BICs is demonstrated. The simulations and experiments show great agreement. Our findings of valley related topological BICs shed light on both BICs and valley physics, and may foster innovative applications of topological acoustic devices. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_05412 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Valley edge states as bound states in the continuum Yin, Shunda Ye, Liping He, Hailong Huang, Xueqin Ke, Manzhu Deng, Weiyin Lu, Jiuyang Liu, Zhengyou Mesoscale and Nanoscale Physics Materials Science Bound states in the continuum (BICs) are spatially localized states with energy embedded in the continuum spectrum of extended states. The combination of BICs physics and nontrivial band topology theory giving rise to topological BICs, which are robust against disorders and meanwhile of the merit of conventional BICs, is attracting wide attention recently. Here, we report valley edge states as topological BICs, which appear at domain wall between two distinct valley topological phases. The robustness of such BICs is demonstrated. The simulations and experiments show great agreement. Our findings of valley related topological BICs shed light on both BICs and valley physics, and may foster innovative applications of topological acoustic devices. |
| title | Valley edge states as bound states in the continuum |
| topic | Mesoscale and Nanoscale Physics Materials Science |
| url | https://arxiv.org/abs/2404.05412 |