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Optics Letters

Optics Letters


  • Editor: Alan E. Willner
  • Vol. 34, Iss. 20 — Oct. 15, 2009
  • pp: 3238–3240

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

Marcos Curty, Tobias Moroder, Xiongfeng Ma, and Norbert Lütkenhaus  »View Author Affiliations

Optics Letters, Vol. 34, Issue 20, pp. 3238-3240 (2009)

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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.

© 2009 Optical Society of America

OCIS Codes
(270.5290) Quantum optics : Photon statistics
(270.5565) Quantum optics : Quantum communications
(270.5568) Quantum optics : Quantum cryptography

ToC Category:
Quantum Optics

Original Manuscript: July 7, 2009
Manuscript Accepted: August 9, 2009
Published: October 15, 2009

Marcos Curty, Tobias Moroder, Xiongfeng Ma, and Norbert Lütkenhaus, "Non-Poissonian statistics from Poissonian light sources with application to passive decoy state quantum key distribution," Opt. Lett. 34, 3238-3240 (2009)

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