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

نویسندگان

  • Daniel J Rogers
  • Joshua C Bienfang
  • Anastase Nakassis
  • Hai Xu
  • Charles W Clark
چکیده

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 highspeed 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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تاریخ انتشار 2007