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- W2952293485 abstract "Long-distance entanglement distribution is essential both for foundational tests of quantum physics and scalable quantum networks. Owing to channel loss, however, the previously achieved distance was limited to ~100 km. Here, we demonstrate satellite-based distribution of entangled photon pairs to two locations separated by 1203 km on the Earth, through satellite-to-ground two-downlink with a sum of length varies from 1600 km to 2400 km. We observe a survival of two-photon entanglement and a violation of Bell inequality by 2.37+/-0.09 under strict Einstein locality conditions. The obtained effective link efficiency at 1200 km in this work is over 12 orders of magnitude higher than the direct bidirectional transmission of the two photons through the best commercial telecommunication fibers with a loss of 0.16 dB/km." @default.
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- W2952293485 date "2017-07-05" @default.
- W2952293485 modified "2023-09-30" @default.
- W2952293485 title "Satellite-Based Entanglement Distribution Over 1200 kilometers" @default.
- W2952293485 doi "https://doi.org/10.48550/arxiv.1707.01339" @default.
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