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Zhong, Han-Sen; Wang, Hui; Deng, Yu-Hao; Chen, Ming-Cheng; Peng, Li-Chao; Luo, Yi-Han; Qin, Jian; Wu, Dian; Ding, Xing; Hu, Yi; Hu, Peng; Yang, Xiao-Yan; Zhang, Wei-Jun; Li, Hao; Li, Yuxuan; Jiang, Xiao; Gan, Lin; Yang, Guangwen; You, Lixing; Wang, Zhen; Li, Li; Liu, Nai-Le; Lu, Chao-Yang; Pan, Jian-Wei
Science (American Association for the Advancement of Science), 12/2020, Volume: 370, Issue: 6523Journal Article
Quantum computers promise to perform certain tasks that are believed to be intractable to classical computers. Boson sampling is such a task and is considered a strong candidate to demonstrate the quantum computational advantage. We performed Gaussian boson sampling by sending 50 indistinguishable single-mode squeezed states into a 100-mode ultralow-loss interferometer with full connectivity and random matrix-the whole optical setup is phase-locked-and sampling the output using 100 high-efficiency single-photon detectors. The obtained samples were validated against plausible hypotheses exploiting thermal states, distinguishable photons, and uniform distribution. The photonic quantum computer, , generates up to 76 output photon clicks, which yields an output state-space dimension of 10 and a sampling rate that is faster than using the state-of-the-art simulation strategy and supercomputers by a factor of ~10 .
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