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In the quantum key distribution (QKD) system, information reconciliation is an essential component within the QKD post processing. Emulation techniques play an important role in information reconciliation since it enables the research of information processing to be independent with expensive and time-consuming physical systems. In this paper, we design(More)
Position and momentum were the first pair of conjugate observables explicitly used to illustrate the intricacy of quantum mechanics. We have extended position and momentum entanglement to bright optical beams. Applications in optical metrology and interferometry require the continuous measurement of laser beams, with the accuracy fundamentally limited by(More)
We report a fiber-based quasi-continuous-wave (CW) quantum key distribution (QKD) system with continuous variables (CV). This system employs coherent light pulses and time multiplexing to maximally reduce cross talk in the fiber. No-switching detection scheme is adopted to optimize the repetition rate. Information is encoded on the sideband of the pulsed(More)
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