Non-Hermitian reshaping of high-order Landau modes
Fuente:
arXiv
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| Autores principales: | , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2026
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866911595502764032 |
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| author | Wang, Zhihao Jiang, Jie Zheng, Yanji Zhao, Wen Wang, Chenyang Guo, Zhiwei Liu, Yong-Chun Zhang, Shuang Lu, Cuicui |
| author_facet | Wang, Zhihao Jiang, Jie Zheng, Yanji Zhao, Wen Wang, Chenyang Guo, Zhiwei Liu, Yong-Chun Zhang, Shuang Lu, Cuicui |
| contents | When charged particles are subjected to strong magnetic fields, they form discrete energy levels known as Landau levels. The Landau levels consist of a series of degenerate states of Landau modes, making them a promising platform for large-capacity information processing. However, to date, exploiting the high-order Landau modes and control their spatial distributions has remained elusive. Here, we propose to construct magnetic fields, electric fields, and imaginary momentum simultaneously to reshape high-order Landau modes in non-Hermitian systems. By building a non-Hermitian electric circuit platform, we experimentally realize pseudomagnetic fields via inhomogeneous coupling and pseudoelectric fields via a gradient on-site potential, while simultaneously introducing an imaginary momentum via non-reciprocal coupling. We directly observe multi-frequency single-peak localization of high-order Landau modes. Our work provides a universal method for manipulating high-order Landau modes and exploring applications in nonHermitian systems, such as frequency multiplexing and wave packet reshaping. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_13808 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Non-Hermitian reshaping of high-order Landau modes Wang, Zhihao Jiang, Jie Zheng, Yanji Zhao, Wen Wang, Chenyang Guo, Zhiwei Liu, Yong-Chun Zhang, Shuang Lu, Cuicui Optics Materials Science When charged particles are subjected to strong magnetic fields, they form discrete energy levels known as Landau levels. The Landau levels consist of a series of degenerate states of Landau modes, making them a promising platform for large-capacity information processing. However, to date, exploiting the high-order Landau modes and control their spatial distributions has remained elusive. Here, we propose to construct magnetic fields, electric fields, and imaginary momentum simultaneously to reshape high-order Landau modes in non-Hermitian systems. By building a non-Hermitian electric circuit platform, we experimentally realize pseudomagnetic fields via inhomogeneous coupling and pseudoelectric fields via a gradient on-site potential, while simultaneously introducing an imaginary momentum via non-reciprocal coupling. We directly observe multi-frequency single-peak localization of high-order Landau modes. Our work provides a universal method for manipulating high-order Landau modes and exploring applications in nonHermitian systems, such as frequency multiplexing and wave packet reshaping. |
| title | Non-Hermitian reshaping of high-order Landau modes |
| topic | Optics Materials Science |
| url | https://arxiv.org/abs/2604.13808 |