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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 19, Iss. 25 — Dec. 5, 2011
  • pp: 25173–25180

Quantum random bit generation using stimulated Raman scattering

Philip J. Bustard, Doug Moffatt, Rune Lausten, Guorong Wu, Ian A. Walmsley, and Benjamin J. Sussman  »View Author Affiliations

Optics Express, Vol. 19, Issue 25, pp. 25173-25180 (2011)

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Random number sequences are a critical resource in a wide variety of information systems, including applications in cryptography, simulation, and data sampling. We introduce a quantum random number generator based on the phase measurement of Stokes light generated by amplification of zero-point vacuum fluctuations using stimulated Raman scattering. This is an example of quantum noise amplification using the most noise-free process possible: near unitary quantum evolution. The use of phase offers robustness to classical pump noise and the ability to generate multiple bits per measurement. The Stokes light is generated with high intensity and as a result, fast detectors with high signal-to-noise ratios can be used for measurement, eliminating the need for single-photon sensitive devices. The demonstrated implementation uses optical phonons in bulk diamond.

© 2011 OSA

OCIS Codes
(030.6600) Coherence and statistical optics : Statistical optics
(190.5650) Nonlinear optics : Raman effect
(190.5890) Nonlinear optics : Scattering, stimulated
(270.2500) Quantum optics : Fluctuations, relaxations, and noise
(290.5910) Scattering : Scattering, stimulated Raman
(350.5030) Other areas of optics : Phase

ToC Category:
Nonlinear Optics

Original Manuscript: September 26, 2011
Revised Manuscript: October 7, 2011
Manuscript Accepted: October 21, 2011
Published: November 23, 2011

Philip J. Bustard, Doug Moffatt, Rune Lausten, Guorong Wu, Ian A. Walmsley, and Benjamin J. Sussman, "Quantum random bit generation using stimulated Raman scattering," Opt. Express 19, 25173-25180 (2011)

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