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Optics Express

Optics Express

  • Editor: Andrew M. Weiner
  • Vol. 21, Iss. 24 — Dec. 2, 2013
  • pp: 29350–29357

Quantum random bit generation using energy fluctuations in stimulated Raman scattering

Philip J. Bustard, Duncan G. England, Josh Nunn, Doug Moffatt, Michael Spanner, Rune Lausten, and Benjamin J. Sussman  »View Author Affiliations

Optics Express, Vol. 21, Issue 24, pp. 29350-29357 (2013)

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Random number sequences are a critical resource in modern information processing systems, with applications in cryptography, numerical simulation, and data sampling. We introduce a quantum random number generator based on the measurement of pulse energy quantum fluctuations in Stokes light generated by spontaneously-initiated stimulated Raman scattering. Bright Stokes pulse energy fluctuations up to five times the mean energy are measured with fast photodiodes and converted to unbiased random binary strings. Since the pulse energy is a continuous variable, multiple bits can be extracted from a single measurement. Our approach can be generalized to a wide range of Raman active materials; here we demonstrate a prototype using the optical phonon line in bulk diamond.

© 2013 Optical Society of America

OCIS Codes
(030.6600) Coherence and statistical optics : Statistical optics
(190.5650) Nonlinear optics : Raman effect
(190.5890) Nonlinear optics : Scattering, stimulated
(270.1670) Quantum optics : Coherent optical effects
(270.2500) Quantum optics : Fluctuations, relaxations, and noise
(290.5910) Scattering : Scattering, stimulated Raman

ToC Category:
Quantum Optics

Original Manuscript: September 16, 2013
Revised Manuscript: November 1, 2013
Manuscript Accepted: November 2, 2013
Published: November 20, 2013

Philip J. Bustard, Duncan G. England, Josh Nunn, Doug Moffatt, Michael Spanner, Rune Lausten, and Benjamin J. Sussman, "Quantum random bit generation using energy fluctuations in stimulated Raman scattering," Opt. Express 21, 29350-29357 (2013)

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