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arXiv · 0909.5519

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

Marcos Curty·Tobias Moroder·Xiongfeng Ma·Norbert Lütkenhaus
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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.

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Marcos Curty, Tobias Moroder, Xiongfeng Ma, Norbert Lütkenhaus. 2009-09-30. Non-Poissonian statistics from Poissonian light sources with application to passive decoy state quantum key distribution. https://doi.org/10.1364/ol.34.003238

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