Scientific article
Open access

Detector-device-independent quantum key distribution

Published inApplied physics letters, vol. 105, no. 22, 221112
Publication date2014

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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Citation (ISO format)
LIM, Ci Wen et al. Detector-device-independent quantum key distribution. In: Applied physics letters, 2014, vol. 105, n° 22, p. 221112. doi: 10.1063/1.4903350
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Article (Published version)
ISSN of the journal0003-6951

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