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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 natural strategy for realizing practical single-photon devices is to adapt current semiconductor light emitters and detectors. I discuss progress towards a single-photon technology based upon integrating self-organised quantum dots into conventional optoelectronic devices
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