Observation of non-Hermitian edge burst in quantum dynamics
Fuente:
arXiv
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| Autores principales: | , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2023
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866916359983595520 |
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| author | Xiao, Lei Xue, Wen-Tan Song, Fei Hu, Yu-Min Yi, Wei Wang, Zhong Xue, Peng |
| author_facet | Xiao, Lei Xue, Wen-Tan Song, Fei Hu, Yu-Min Yi, Wei Wang, Zhong Xue, Peng |
| contents | The non-Hermitian skin effect, by which the eigenstates of Hamiltonian are predominantly localized at the boundary, has revealed a strong sensitivity of non-Hermitian systems to the boundary condition. Here we experimentally observe a striking boundary-induced dynamical phenomenon known as the non-Hermitian edge burst, which is characterized by a sharp boundary accumulation of loss in non-Hermitian time evolutions. In contrast to the eigenstate localization, the edge burst represents a generic non-Hermitian dynamical phenomenon that occurs in real time. Our experiment, based on photonic quantum walks, not only confirms the prediction of the phenomenon, but also unveils its complete space-time dynamics. Our observation of edge burst paves the way for studying the rich real-time dynamics in non-Hermitian topological systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2303_12831 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Observation of non-Hermitian edge burst in quantum dynamics Xiao, Lei Xue, Wen-Tan Song, Fei Hu, Yu-Min Yi, Wei Wang, Zhong Xue, Peng Mesoscale and Nanoscale Physics Quantum Gases Optics Quantum Physics The non-Hermitian skin effect, by which the eigenstates of Hamiltonian are predominantly localized at the boundary, has revealed a strong sensitivity of non-Hermitian systems to the boundary condition. Here we experimentally observe a striking boundary-induced dynamical phenomenon known as the non-Hermitian edge burst, which is characterized by a sharp boundary accumulation of loss in non-Hermitian time evolutions. In contrast to the eigenstate localization, the edge burst represents a generic non-Hermitian dynamical phenomenon that occurs in real time. Our experiment, based on photonic quantum walks, not only confirms the prediction of the phenomenon, but also unveils its complete space-time dynamics. Our observation of edge burst paves the way for studying the rich real-time dynamics in non-Hermitian topological systems. |
| title | Observation of non-Hermitian edge burst in quantum dynamics |
| topic | Mesoscale and Nanoscale Physics Quantum Gases Optics Quantum Physics |
| url | https://arxiv.org/abs/2303.12831 |