Boundary-induced topological chiral extended states in Weyl metamaterial waveguides
Fuente:
arXiv
Gespeichert in:
| Hauptverfasser: | , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Veröffentlicht: |
2024
|
| Schlagworte: | |
| Online-Zugang: | |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1866907771872477184 |
|---|---|
| author | Han, Ning Chen, Fujia Li, Mingzhu Zhao, Rui Li, Wenhao Chen, Qiaolu Zhang, Li Pan, Yuang Ma, Jingwen Yu, Zhi-Ming Chen, Hongsheng Yang, Yihao |
| author_facet | Han, Ning Chen, Fujia Li, Mingzhu Zhao, Rui Li, Wenhao Chen, Qiaolu Zhang, Li Pan, Yuang Ma, Jingwen Yu, Zhi-Ming Chen, Hongsheng Yang, Yihao |
| contents | In topological physics, it is commonly understood that the existence of the boundary states of a topological system is inherently dictated by its bulk. A classic example is that the surface Fermi arc states of a Weyl system are determined by the chiral charges of Weyl points within the bulk. Contrasting with this established perspective, here, we theoretically and experimentally discover a family of topological chiral bulk states extending over photonic Weyl metamaterial waveguides, solely induced by the waveguide boundaries, independently of the waveguide width. Notably, these bulk states showcase discrete momenta and function as wormhole tunnels that connect Fermi-arc surface states living in different two dimensional spaces via a third dimension. Our work offers a magneticfield-free mechanism for robust chiral bulk transport of waves and highlights the boundaries as a new degree of freedom to regulate bulk Weyl quasiparticles. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_11780 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Boundary-induced topological chiral extended states in Weyl metamaterial waveguides Han, Ning Chen, Fujia Li, Mingzhu Zhao, Rui Li, Wenhao Chen, Qiaolu Zhang, Li Pan, Yuang Ma, Jingwen Yu, Zhi-Ming Chen, Hongsheng Yang, Yihao Optics In topological physics, it is commonly understood that the existence of the boundary states of a topological system is inherently dictated by its bulk. A classic example is that the surface Fermi arc states of a Weyl system are determined by the chiral charges of Weyl points within the bulk. Contrasting with this established perspective, here, we theoretically and experimentally discover a family of topological chiral bulk states extending over photonic Weyl metamaterial waveguides, solely induced by the waveguide boundaries, independently of the waveguide width. Notably, these bulk states showcase discrete momenta and function as wormhole tunnels that connect Fermi-arc surface states living in different two dimensional spaces via a third dimension. Our work offers a magneticfield-free mechanism for robust chiral bulk transport of waves and highlights the boundaries as a new degree of freedom to regulate bulk Weyl quasiparticles. |
| title | Boundary-induced topological chiral extended states in Weyl metamaterial waveguides |
| topic | Optics |
| url | https://arxiv.org/abs/2401.11780 |