Clock Synchronization for Drone-Based Entanglement Quantum Key Distribution
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866913885834969088 |
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| author | Huang, Jinquan Tang, Bangying Han, Hui Yi, JianJi Xu, Bo Wu, Chunqing Zhu, Xiangwei Yu, Wanrong Yu, Huicun Li, Jiahao Sun, Shihai Liu, Bo |
| author_facet | Huang, Jinquan Tang, Bangying Han, Hui Yi, JianJi Xu, Bo Wu, Chunqing Zhu, Xiangwei Yu, Wanrong Yu, Huicun Li, Jiahao Sun, Shihai Liu, Bo |
| contents | Drone-based entanglement distribution provides full spatiotemporal coverage for quantum networks, enabling quantum key distribution (QKD) in dynamic environments. The security of QKD fundamentally depends on high-fidelity quantum state measurements, for which high-precision clock synchronization is indispensable, as timing jitter is inversely correlated with quantum state fidelity. However, drone-based clock synchronization is constrained by SWaP (Size, Weight, and Power) limitations and dynamic mobility effects. Here, we propose a synchronization protocol for drone-based entanglement distribution, leveraging nanosecond-accurate Global Navigation Satellite System (GNSS) timing and entanglement-based timing correction to overcome SWaP constraints. Experimental results demonstrate 24 ps RMS synchronization in simulated free-space quantum channels with distance dynamics, without requiring precision reference clock. Our protocol enables drone-based entanglement distribution, paving the way for seamless wide-area and local-area quantum internet. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2506_07831 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Clock Synchronization for Drone-Based Entanglement Quantum Key Distribution Huang, Jinquan Tang, Bangying Han, Hui Yi, JianJi Xu, Bo Wu, Chunqing Zhu, Xiangwei Yu, Wanrong Yu, Huicun Li, Jiahao Sun, Shihai Liu, Bo Quantum Physics Drone-based entanglement distribution provides full spatiotemporal coverage for quantum networks, enabling quantum key distribution (QKD) in dynamic environments. The security of QKD fundamentally depends on high-fidelity quantum state measurements, for which high-precision clock synchronization is indispensable, as timing jitter is inversely correlated with quantum state fidelity. However, drone-based clock synchronization is constrained by SWaP (Size, Weight, and Power) limitations and dynamic mobility effects. Here, we propose a synchronization protocol for drone-based entanglement distribution, leveraging nanosecond-accurate Global Navigation Satellite System (GNSS) timing and entanglement-based timing correction to overcome SWaP constraints. Experimental results demonstrate 24 ps RMS synchronization in simulated free-space quantum channels with distance dynamics, without requiring precision reference clock. Our protocol enables drone-based entanglement distribution, paving the way for seamless wide-area and local-area quantum internet. |
| title | Clock Synchronization for Drone-Based Entanglement Quantum Key Distribution |
| topic | Quantum Physics |
| url | https://arxiv.org/abs/2506.07831 |