Non-Poissonian statistics from Poissonian light sources with application to passive decoy state quantum key distribution
arXiv:0909.5519 · doi:10.1364/OL.34.003238
Abstract
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 to the performance of active choices of intensities of Poissonian signals.
7 pages, 3 figures, accepted for publication in Opt. Lett
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