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, Benjamin J. Sussman

Research output: Contribution to journalArticlepeer-review

24 Citations (SciVal)


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.

Original languageEnglish
Pages (from-to)29350-29357
Number of pages8
JournalOptics Express
Issue number24
Publication statusPublished - 2 Dec 2013

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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