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Secure Quantum Key Distribution over 421 km of Optical Fiber

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Published in Physical Review Letters. 2018, vol. 121, no. 190502
Abstract We present a quantum key distribution system with a 2.5 GHz repetition rate using a three-state timebin protocol combined with a one-decoy approach. Taking advantage of superconducting single-photon detectors optimized for quantum key distribution and ultralow-loss fiber, we can distribute secret keys at a maximum distance of 421 km and obtain secret key rates of 6.5 bps over 405 km.
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Research group Groupe Zbinden
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BOARON, Alberto et al. Secure Quantum Key Distribution over 421 km of Optical Fiber. In: Physical Review Letters, 2018, vol. 121, n° 190502. doi: 10.1103/PhysRevLett.121.190502 https://archive-ouverte.unige.ch/unige:112310

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Deposited on : 2018-12-14

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