Experimental measurement-device-independent quantum key distribution.

By Yang Liu, Teng-Yun Chen, Liu-Jun Wang, Hao Liang, Guoliang Shentu, Jian Wang, Ke Cui, Hua‐Lei Yin, Nai-Le Liu, Li Li and 6 more. Physical Review Letters, 2012

354 citations recorded by the source corpus.

Quantum key distribution is proven to offer unconditional security in communication between two remote users with ideal source and detection. Unfortunately, ideal devices never exist in practice and device imperfections have become the targets of various attacks. By developing up-conversion single-photon detectors with high efficiency and low noise, we faithfully demonstrate the measurement-device-independent quantum-key-distribution protocol, which is immune to all hacking strategies on detection. Meanwhile, we employ the decoy-state method to defend attacks on a nonideal source. By assuming a trusted source scenario, our practical system, which generates more than a 25 kbit secure key over a 50 km fiber link, serves as a stepping stone in the quest for unconditionally secure communications with realistic devices.

Subfields: Artificial Intelligence, Atomic and Molecular Physics, and Optics

View Paper: https://www.semanticscholar.org/paper/e1c531e62141f8e40c1eebf4a7e242132966133e

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In Artificial Intelligence

In Atomic and Molecular Physics, and Optics

Citations in the corpus

Advances in quantum cryptography (2019, positive): “The second group implemented the protocol over 50 km in the lab [235].”