Hybridization of Non-Hermitian Topological Interface Modes
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arXiv
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| Autori principali: | , , , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2025
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| _version_ | 1866915171325181952 |
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| author | Wang, Yuhao Nguyen, Hai-Chau Yuan, Zhiyi Do, T. Thu Ha Valuckas, Vytautas Nguyen, Hai Son Dang, Cuong Ha, Son Tung |
| author_facet | Wang, Yuhao Nguyen, Hai-Chau Yuan, Zhiyi Do, T. Thu Ha Valuckas, Vytautas Nguyen, Hai Son Dang, Cuong Ha, Son Tung |
| contents | We propose and experimentally demonstrate the hybridization of radiating topological interface states, analogous to Jackiw-Rebbi states but in gain media with radiation fields. This hybridization not only modifies energy levels under a strong coupling scheme but also significantly reshapes far-field radiation characteristics. The bonding mode exhibits sub-radiant, omnidirectional emission, while the antibonding mode becomes super-radiant and highly unidirectional. Crucially, this non-Hermitian hybridization is tunable, allowing simultaneous control of energy splitting, quality factor, and far-field radiation by varying the distance between the two topological interfaces. Our findings establish hybridized radiating topological interface states as a robust platform for engineering two-level systems with tailored far-field responses, offering new possibilities for applications in beam shaping, nonlinear optics, quantum technologies, and beyond. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2502_17649 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Hybridization of Non-Hermitian Topological Interface Modes Wang, Yuhao Nguyen, Hai-Chau Yuan, Zhiyi Do, T. Thu Ha Valuckas, Vytautas Nguyen, Hai Son Dang, Cuong Ha, Son Tung Optics Mesoscale and Nanoscale Physics We propose and experimentally demonstrate the hybridization of radiating topological interface states, analogous to Jackiw-Rebbi states but in gain media with radiation fields. This hybridization not only modifies energy levels under a strong coupling scheme but also significantly reshapes far-field radiation characteristics. The bonding mode exhibits sub-radiant, omnidirectional emission, while the antibonding mode becomes super-radiant and highly unidirectional. Crucially, this non-Hermitian hybridization is tunable, allowing simultaneous control of energy splitting, quality factor, and far-field radiation by varying the distance between the two topological interfaces. Our findings establish hybridized radiating topological interface states as a robust platform for engineering two-level systems with tailored far-field responses, offering new possibilities for applications in beam shaping, nonlinear optics, quantum technologies, and beyond. |
| title | Hybridization of Non-Hermitian Topological Interface Modes |
| topic | Optics Mesoscale and Nanoscale Physics |
| url | https://arxiv.org/abs/2502.17649 |