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Detector dead-time effects and paralyzability in high-speed quantum key distribution

TitleDetector dead-time effects and paralyzability in high-speed quantum key distribution
Publication TypeJournal Article
Year of Publication2007
AuthorsD. J. Rogers, J. C. Bienfang, A. Nakassis, H. Xu, and C. W. Clark
JournalNew J. Phys.
Date Publishedsep
Keywords2007, Single Fellow

Recent advances in quantum key distribution (QKD) have given rise to systems that operate at transmission periods significantly shorter than the dead times of their component single-photon detectors. As systems continue to increase in transmission rate, security concerns associated with detector dead times can limit the production rate of sifted bits. We present a model of high-speed QKD in this limit that identifies an optimum transmission rate for a system with given link loss and detector response characteristics.


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