Topological States Decorated by Twig Boundary in Plasma Photonic Crystals
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2023
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866929322855497728 |
|---|---|
| author | Li, Jianfei Yao, Jingfeng Wang, Ying Zhou, Zhongxiang Lan, Zhihao Yuan, Chengxun |
| author_facet | Li, Jianfei Yao, Jingfeng Wang, Ying Zhou, Zhongxiang Lan, Zhihao Yuan, Chengxun |
| contents | The twig edge states in graphene-like structures are viewed as the fourth states complementary to their zigzag, bearded, and armchair counterparts. In this work, we study a rod-in-plasma system in honeycomb lattice with twig edge truncation under external magnetic fields and lattice scaling and show that twig edge states can exist in different phases of the system, such as quantum Hall phase, quantum spin Hall phase and insulating phase. The twig edge states in the negative permittivity background exhibit robust one-way transmission property immune to backscattering and thus provide a novel avenue for solving the plasma communication blackout problem. Moreover, we demonstrate that corner and edge states can exist within the shrunken structure by modulating the on-site potential of the twig edges. Especially, helical edge states with the unique feature of pseudospin-momentum locking that could be excited by chiral sources are demonstrated at the twig edges. Our results show that the twig edges and interface engineering can bring new opportunities for more flexible manipulation of electromagnetic waves. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2311_08733 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Topological States Decorated by Twig Boundary in Plasma Photonic Crystals Li, Jianfei Yao, Jingfeng Wang, Ying Zhou, Zhongxiang Lan, Zhihao Yuan, Chengxun Mesoscale and Nanoscale Physics Optics Plasma Physics Quantum Physics The twig edge states in graphene-like structures are viewed as the fourth states complementary to their zigzag, bearded, and armchair counterparts. In this work, we study a rod-in-plasma system in honeycomb lattice with twig edge truncation under external magnetic fields and lattice scaling and show that twig edge states can exist in different phases of the system, such as quantum Hall phase, quantum spin Hall phase and insulating phase. The twig edge states in the negative permittivity background exhibit robust one-way transmission property immune to backscattering and thus provide a novel avenue for solving the plasma communication blackout problem. Moreover, we demonstrate that corner and edge states can exist within the shrunken structure by modulating the on-site potential of the twig edges. Especially, helical edge states with the unique feature of pseudospin-momentum locking that could be excited by chiral sources are demonstrated at the twig edges. Our results show that the twig edges and interface engineering can bring new opportunities for more flexible manipulation of electromagnetic waves. |
| title | Topological States Decorated by Twig Boundary in Plasma Photonic Crystals |
| topic | Mesoscale and Nanoscale Physics Optics Plasma Physics Quantum Physics |
| url | https://arxiv.org/abs/2311.08733 |