Quantum synchronization of a single trapped-ion qubit
Synchronizing a few-level quantum system is of fundamental importance to the understanding of synchronization in the deep quantum regime. Whether a two-level system, the smallest quantum system, can be synchronized has been theoretically debated for the past several years. Here, for the first time,...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2023-09-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.5.033209 |
| _version_ | 1797210395721596928 |
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| author | Liyun Zhang Zhao Wang Yucheng Wang Junhua Zhang Zhigang Wu Jianwen Jie Yao Lu |
| author_facet | Liyun Zhang Zhao Wang Yucheng Wang Junhua Zhang Zhigang Wu Jianwen Jie Yao Lu |
| author_sort | Liyun Zhang |
| collection | DOAJ |
| description | Synchronizing a few-level quantum system is of fundamental importance to the understanding of synchronization in the deep quantum regime. Whether a two-level system, the smallest quantum system, can be synchronized has been theoretically debated for the past several years. Here, for the first time, we demonstrate that a qubit can indeed be synchronized to an external driving signal by using a trapped-ion system. By engineering fully controllable gain and damping processes, an ion qubit is locked to the driving signal and oscillates in phase. Moreover, upon tuning the parameters of the driving signal, we observe characteristic features of the Arnold tongue as well. Our measurements agree remarkably well with numerical simulations based on recent theory on qubit synchronization. By synchronizing the basic unit of quantum information, our study opens up the possibility of exploring the application of quantum synchronization to quantum information processing in the near future. |
| first_indexed | 2024-04-24T10:09:55Z |
| format | Article |
| id | doaj.art-b4384b7fd99a4721869fdf2e0b7b762e |
| institution | Directory Open Access Journal |
| issn | 2643-1564 |
| language | English |
| last_indexed | 2024-04-24T10:09:55Z |
| publishDate | 2023-09-01 |
| publisher | American Physical Society |
| record_format | Article |
| series | Physical Review Research |
| spelling | doaj.art-b4384b7fd99a4721869fdf2e0b7b762e2024-04-12T17:34:22ZengAmerican Physical SocietyPhysical Review Research2643-15642023-09-015303320910.1103/PhysRevResearch.5.033209Quantum synchronization of a single trapped-ion qubitLiyun ZhangZhao WangYucheng WangJunhua ZhangZhigang WuJianwen JieYao LuSynchronizing a few-level quantum system is of fundamental importance to the understanding of synchronization in the deep quantum regime. Whether a two-level system, the smallest quantum system, can be synchronized has been theoretically debated for the past several years. Here, for the first time, we demonstrate that a qubit can indeed be synchronized to an external driving signal by using a trapped-ion system. By engineering fully controllable gain and damping processes, an ion qubit is locked to the driving signal and oscillates in phase. Moreover, upon tuning the parameters of the driving signal, we observe characteristic features of the Arnold tongue as well. Our measurements agree remarkably well with numerical simulations based on recent theory on qubit synchronization. By synchronizing the basic unit of quantum information, our study opens up the possibility of exploring the application of quantum synchronization to quantum information processing in the near future.http://doi.org/10.1103/PhysRevResearch.5.033209 |
| spellingShingle | Liyun Zhang Zhao Wang Yucheng Wang Junhua Zhang Zhigang Wu Jianwen Jie Yao Lu Quantum synchronization of a single trapped-ion qubit Physical Review Research |
| title | Quantum synchronization of a single trapped-ion qubit |
| title_full | Quantum synchronization of a single trapped-ion qubit |
| title_fullStr | Quantum synchronization of a single trapped-ion qubit |
| title_full_unstemmed | Quantum synchronization of a single trapped-ion qubit |
| title_short | Quantum synchronization of a single trapped-ion qubit |
| title_sort | quantum synchronization of a single trapped ion qubit |
| url | http://doi.org/10.1103/PhysRevResearch.5.033209 |
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