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

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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Cited by in corpus (9)

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• Quantum Eavesdropping without Interception: An Attack Exploiting the Dead Time of Single Photon Detectors
• Recent advances and future perspectives of single-photon avalanche diodes for quantum photonics applications
• Ultrashort dead time of photon-counting InGaAs avalanche photodiodes
• Detection of ultra-weak laser pulses by free-running single-photon detectors: modeling dead time and dark counts effects
• Trustworthiness of detectors in quantum key distribution with untrusted detectors
• Time-cost analysis of a quantum key distribution system clocked at 100 MHz
• Security of high speed quantum key distribution with finite detector dead time