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arXiv · 2407.21305

Long-distance distribution of telecom time-energy entanglement generated on a silicon chip

Yuan-yuan Zhao·Fuyong Yue·Feng Gao·Qibing Wang·Chao Li·Zichen Liu·Lei Wang·Zhixue He
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Abstract

Entanglement distribution is a critical technique that enables numerous quantum applications. Most fiber-based long-distance experiments reported to date have utilized photon pair sources generated in bulk optical crystals, with the entanglement encoded in the polarization degree of freedom. Here, we create time-energy entanglement for photon pairs generated from an on-chip silicon ring resonator via SFWM process and report the distribution of the entanglement over standard optical fiber with distance >81 km. Our work paves the way for future large-scale quantum networks with connect of distant quantum nodes.

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Yuan-yuan Zhao, Fuyong Yue, Feng Gao, Qibing Wang, Chao Li, Zichen Liu, Lei Wang, Zhixue He. 2024-07-31. Long-distance distribution of telecom time-energy entanglement generated on a silicon chip. https://arxiv.org/abs/2407.21305

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