Drive-Through Quantum Gate: Non-Stop Entangling a Mobile Ion Qubit with a Stationary One
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arXiv
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| Autori principali: | , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2026
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| _version_ | 1866914275310698496 |
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| author | Hsu, Ting Png, Wen-Han Lin, Kuan-Ting Chang, Ming-Shien Lin, Guin-Dar |
| author_facet | Hsu, Ting Png, Wen-Han Lin, Kuan-Ting Chang, Ming-Shien Lin, Guin-Dar |
| contents | Towards the scalable realization of a quantum computer, a quantum charge-coupled device (QCCD) based on ion shuttling has been considered a promising approach. However, the processes of detaching an ion from an array, reintegrating it, and driving non-uniform motion introduce severe heating, requiring significant time and laser power for re-cooling and stabilization. To mitigate these challenges, we propose a novel entangling scheme between a stationary ion qubit and a continuously transported mobile ion, which remains in uniform motion and minimizes motional heating. We theoretically demonstrate a gate error on the order of 0.01%, within reach of current technology. This approach enables resource-efficient quantum operations and facilitates long-distance entanglement distribution, where stationary trapped-ion arrays serve as memory units and mobile ions act as communication qubits passing beside them. Our results pave the way for an alternative trapped-ion architecture beyond the QCCD paradigm. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2601_16537 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Drive-Through Quantum Gate: Non-Stop Entangling a Mobile Ion Qubit with a Stationary One Hsu, Ting Png, Wen-Han Lin, Kuan-Ting Chang, Ming-Shien Lin, Guin-Dar Quantum Physics Towards the scalable realization of a quantum computer, a quantum charge-coupled device (QCCD) based on ion shuttling has been considered a promising approach. However, the processes of detaching an ion from an array, reintegrating it, and driving non-uniform motion introduce severe heating, requiring significant time and laser power for re-cooling and stabilization. To mitigate these challenges, we propose a novel entangling scheme between a stationary ion qubit and a continuously transported mobile ion, which remains in uniform motion and minimizes motional heating. We theoretically demonstrate a gate error on the order of 0.01%, within reach of current technology. This approach enables resource-efficient quantum operations and facilitates long-distance entanglement distribution, where stationary trapped-ion arrays serve as memory units and mobile ions act as communication qubits passing beside them. Our results pave the way for an alternative trapped-ion architecture beyond the QCCD paradigm. |
| title | Drive-Through Quantum Gate: Non-Stop Entangling a Mobile Ion Qubit with a Stationary One |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2601.16537 |