Non-Abelian Aharonov-Bohm Caging in Synthetic Dimensions with a Trapped Ion
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arXiv
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| Format: | Preprint |
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2026
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| author | Yao, Wanchao Li, Sai Liu, Zhiyuan Li, Yi Xie, Zihan Zhao, Xingyu Cheng, Xu Li, Yue Xue, Zheng-Yuan Lin, Yiheng |
| author_facet | Yao, Wanchao Li, Sai Liu, Zhiyuan Li, Yi Xie, Zihan Zhao, Xingyu Cheng, Xu Li, Yue Xue, Zheng-Yuan Lin, Yiheng |
| contents | Aharonov-Bohm (AB) caging is a complete localization phenomenon in two-dimensional lattices due to destructive interference induced by the background gauge fields. However, current investigations of AB caging are mostly restricted to the Abelian gauge field case, and the observation of AB caging under non-Abelian gauge fields in a quantum system still remains elusive. Here, we report experimental realization of tunable synthetic non-Abelian SU(2) gauge fields in a rhombic lattice, engineered within the synthetic dimensions of a vibrating trapped ion with multiple levels. We realize AB caging under both Abelian and non-Abelian gauge fields and systematically investigate the distinctive transport properties of the non-Abelian case. In particular, we observe typical emergent quantum dynamics unique to non-Abelian AB caging, including initial-state-dependent dynamics, second-order effects, and asymmetric caging behavior. These observations demonstrate the trapped ion system as a powerful platform for simulating emergent phenomena in high-dimensional quantum systems with exotic synthetic gauge fields. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_13796 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Non-Abelian Aharonov-Bohm Caging in Synthetic Dimensions with a Trapped Ion Yao, Wanchao Li, Sai Liu, Zhiyuan Li, Yi Xie, Zihan Zhao, Xingyu Cheng, Xu Li, Yue Xue, Zheng-Yuan Lin, Yiheng Quantum Physics Aharonov-Bohm (AB) caging is a complete localization phenomenon in two-dimensional lattices due to destructive interference induced by the background gauge fields. However, current investigations of AB caging are mostly restricted to the Abelian gauge field case, and the observation of AB caging under non-Abelian gauge fields in a quantum system still remains elusive. Here, we report experimental realization of tunable synthetic non-Abelian SU(2) gauge fields in a rhombic lattice, engineered within the synthetic dimensions of a vibrating trapped ion with multiple levels. We realize AB caging under both Abelian and non-Abelian gauge fields and systematically investigate the distinctive transport properties of the non-Abelian case. In particular, we observe typical emergent quantum dynamics unique to non-Abelian AB caging, including initial-state-dependent dynamics, second-order effects, and asymmetric caging behavior. These observations demonstrate the trapped ion system as a powerful platform for simulating emergent phenomena in high-dimensional quantum systems with exotic synthetic gauge fields. |
| title | Non-Abelian Aharonov-Bohm Caging in Synthetic Dimensions with a Trapped Ion |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2602.13796 |