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Detector-device-independent quantum key distribution

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Published in Applied Physics Letters. 2014, vol. 105, no. 22, p. 221112
Abstract Recently, a quantum key distribution (QKD) scheme based on entanglement swapping, called measurement-device-independent QKD (mdiQKD), was proposed to bypass all measurement side-channel attacks. While mdiQKD is conceptually elegant and offers a supreme level of security, the experimental complexity is challenging for practical systems. For instance, it requires interfer- ence between two widely separated independent single-photon sources, and the secret key rates are dependent on detecting two photons—one from each source. Here, we demonstrate a proof-of- principle experiment of a QKD scheme that removes the need for a two-photon system and instead uses the idea of a two-qubit single-photon to significantly simplify the implementation and improve the efficiency of mdiQKD in several aspects.
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LIM, Ci Wen et al. Detector-device-independent quantum key distribution. In: Applied Physics Letters, 2014, vol. 105, n° 22, p. 221112. https://archive-ouverte.unige.ch/unige:83939

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Deposited on : 2016-05-30

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