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

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 نشر من قبل Daniel Rogers
 تاريخ النشر 2007
  مجال البحث فيزياء
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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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