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Fast and simple one-way quantum key distribution

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Published in Applied Physics Letters. 2005, vol. 87, no. 19, p. 194108
Abstract We present and demonstrate a new protocol for practical quantum cryptography, tailored for an implementation with weak coherent pulses to obtain a high key generation rate. The key is obtained by a simple time-of-arrival measurement on the dataline; the presence of an eavesdropper is checked by an interferometer on an additional monitoring line. The setup is experimentally simple; moreover, it is tolerant to reduced interference visibility and to photon number splitting attacks, thus featuring a high efficiency in terms of distilled secret bit per qubit.
Keywords VisibilityQuantum CryptographyPhotonsCoherenceInterferometers
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STUCKI, Damien et al. Fast and simple one-way quantum key distribution. In: Applied Physics Letters, 2005, vol. 87, n° 19, p. 194108. https://archive-ouverte.unige.ch/unige:36768

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Deposited on : 2014-05-20

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