Observation of anomalous information scrambling in a Rydberg atom array
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866912513909587968 |
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| author | Liang, Xinhui Yue, Zongpei Chao, Yu-Xin Hua, Zhen-Xing Lin, Yige Tey, Meng Khoon You, Li |
| author_facet | Liang, Xinhui Yue, Zongpei Chao, Yu-Xin Hua, Zhen-Xing Lin, Yige Tey, Meng Khoon You, Li |
| contents | Quantum information scrambling, which describes the propagation and effective loss of localinformation, is crucial for understanding the dynamics of quantum many-body systems. We report the observation of anomalous information scrambling in an atomic tweezer array with dominant van der Waals interaction. We characterize information spreading by an out-of-time-order correlator and observe persistent oscillations inside a suppressed linear light cone for the initial Neel state. Such an anomalous dynamic, which differs from both generic thermal and many-body localized scenarios, originates from weak ergodicity breaking in quantum many-body scarred systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2410_16174 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Observation of anomalous information scrambling in a Rydberg atom array Liang, Xinhui Yue, Zongpei Chao, Yu-Xin Hua, Zhen-Xing Lin, Yige Tey, Meng Khoon You, Li Quantum Physics Quantum Gases Atomic Physics Quantum information scrambling, which describes the propagation and effective loss of localinformation, is crucial for understanding the dynamics of quantum many-body systems. We report the observation of anomalous information scrambling in an atomic tweezer array with dominant van der Waals interaction. We characterize information spreading by an out-of-time-order correlator and observe persistent oscillations inside a suppressed linear light cone for the initial Neel state. Such an anomalous dynamic, which differs from both generic thermal and many-body localized scenarios, originates from weak ergodicity breaking in quantum many-body scarred systems. |
| title | Observation of anomalous information scrambling in a Rydberg atom array |
| topic | Quantum Physics Quantum Gases Atomic Physics |
| url | https://arxiv.org/abs/2410.16174 |