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Non-Poissonian statistics from Poissonian light sources with application to passive decoy state quantum key distribution



Non-Poissonian statistics from Poissonian light sources with application to passive decoy state quantum key distribution



Optics Letters 34(20): 3238-3240



We propose a method to prepare different non-Poissonian signal pulses from sources of Poissonian photon number distribution, using only linear optical elements and threshold photon detectors. This method allows a simple passive preparation of decoy states for quantum key distribution. We show that the resulting key rates are comparable with the performance of active choices of intensities of Poissonian signals.

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Accession: 054636786

Download citation: RISBibTeXText

PMID: 19838285

DOI: 10.1364/ol.34.003238


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