Comment on "Absence of Topological Protection of the Interface States in $\mathbb{Z}_2$ Photonic Crystals"
Fuente:
arXiv
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| Autores principales: | , , |
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| Formato: | Preprint |
| Publicado: |
2024
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| Acceso en línea: | |
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| _version_ | 1866914895112437760 |
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| author | Wang, Xing-Xiang Kariyado, Toshikaze Hu, Xiao |
| author_facet | Wang, Xing-Xiang Kariyado, Toshikaze Hu, Xiao |
| contents | In the Letter, Xu et al. reported that edge modes disappear in the expanded structure of Wu-Hu model characterized by $\mathbb{Z}_2$ topological index, while appear in the trivial shrunken structure, when the edge cuts through the hexagonal unit cell. They then concluded that these edge modes are defect modes lacking topological protection. Unfortunately, their approach is not justified, rendering the conclusion unsolid. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2404_05156 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Comment on "Absence of Topological Protection of the Interface States in $\mathbb{Z}_2$ Photonic Crystals" Wang, Xing-Xiang Kariyado, Toshikaze Hu, Xiao Optics Mesoscale and Nanoscale Physics In the Letter, Xu et al. reported that edge modes disappear in the expanded structure of Wu-Hu model characterized by $\mathbb{Z}_2$ topological index, while appear in the trivial shrunken structure, when the edge cuts through the hexagonal unit cell. They then concluded that these edge modes are defect modes lacking topological protection. Unfortunately, their approach is not justified, rendering the conclusion unsolid. |
| title | Comment on "Absence of Topological Protection of the Interface States in $\mathbb{Z}_2$ Photonic Crystals" |
| topic | Optics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2404.05156 |