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We report an entanglement-based BBM92 quantum key distribution experiment using superconducting single photon detectors. A 16-kbit sifted key with a quantum bit error rate of 6.9 % was successfully generated after 100 km fiber transmission.
A differential-phase-shift quantum key distribution experiment employing up-conversion single-photon detectors is presented. We achieved a 1-Mbit/s sifted key rate over a 20-km optical fiber, and distributed keys secure against general individual attacks over 75 km.
A differential phase shift quantum key distribution experiment employing up-conversion single-photon detectors is presented. We achieved a 1-Mbit/s sifted key rate over a 20-km optical fiber, and distributed keys secure against general individual attacks over 75 km
A novel type of quantum key distribution (QKD) protocol called differential-phase-shift (DPS) QKD is described. It utilizes a weak coherent pulse train instead of individual photons as in conventional QKD
We report a differential-phase-shift quantum key distribution experiment in which we employed single photon detectors based on frequency up-conversion in periodically poled lithium niobate waveguides. We achieved a shifted key rate of 1 Mbit/s over 30 km of optical fiber, which is two orders of magnitude larger than the previous record
A differential-phase-shift quantum key distribution experiment was carried out using a glass waveguide Mach-Zehnder interferometer. Key creation at the rate of 676 bit/sec with a 5.0% QBER over 25 km fiber was performed
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