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arXiv · 0706.1449

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

Daniel J. Rogers·Joshua C. Bienfang·Anastase Nakassis·Hai Xu·Charles W. Clark
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Abstract

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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Daniel J. Rogers, Joshua C. Bienfang, Anastase Nakassis, Hai Xu, Charles W. Clark. 2007-06-08. Detector dead-time effects and paralyzability in high-speed quantum key distribution. https://doi.org/10.1088/1367-2630%2F9%2F9%2F319

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