Experimental Ten-Photon Entanglement

被引:448
作者
Wang, Xi-Lin [1 ]
Chen, Luo-Kan
Li, W.
Huang, H. -L.
Liu, C.
Chen, C.
Luo, Y. -H.
Su, Z. -E.
Wu, D.
Li, Z. -D.
Lu, H.
Hu, Y.
Jiang, X.
Peng, C. -Z.
Li, L.
Liu, N. -L.
Chen, Yu-Ao
Lu, Chao-Yang
Pan, Jian-Wei
机构
[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
基金
中国国家自然科学基金;
关键词
QUANTUM TELEPORTATION; PHOTON PAIRS; GENERATION;
D O I
10.1103/PhysRevLett.117.210502
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
We report the first experimental demonstration of quantum entanglement among ten spatially separated single photons. A near-optimal entangled photon-pair source was developed with simultaneously a source brightness of similar to 12 MHz= W, a collection efficiency of similar to 70%, and an indistinguishability of similar to 91% between independent photons, which was used for a step-by-step engineering of multiphoton entanglement. Under a pump power of 0.57 W, the ten-photon count rate was increased by about 2 orders of magnitude compared to previous experiments, while maintaining a state fidelity sufficiently high for proving the genuine ten-particle entanglement. Our work created a state-of-the-art platform for multiphoton experiments, and enabled technologies for challenging optical quantum information tasks, such as the realization of Shor's error correction code and high-efficiency scattershot boson sampling.
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页数:6
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