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Applied Physics Letters / Volume 98 / Issue 23 / LASERS, OPTICS, AND OPTOELECTRONICS

Appl. Phys. Lett. 98, 231103 (2011); http://dx.doi.org/10.1063/1.3597793 (3 pages)

Real time demonstration of high bitrate quantum random number generation with coherent laser light

T. Symul, S. M. Assad, and P. K. Lam

Department of Quantum Science, Centre for Quantum Computation and Communication Technology, Australian National University, Canberra ACT 0200, Australia

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(Received 11 February 2011; accepted 17 May 2011; published online 7 June 2011)

We present a random number generation scheme that uses broadband measurements of the vacuum field contained in the radio-frequency sidebands of a single-mode laser. Even though the measurements may contain technical noise, we show that suitable algorithms can transform the digitized photocurrents into a string of random numbers that can be made arbitrarily correlated with a subset of the quantum fluctuations (high quantum correlation regime) or arbitrarily immune to environmental fluctuations (high environmental immunity). We demonstrate up to 2 Gbps of real time random number generation that were verified using standard randomness tests.

© 2011 American Institute of Physics

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KEYWORDS and PACS

Keywords

photoconductivity, quantum communication, random number generation

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3597793

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

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$abstract.society.value is a Member of CrossRef American Institute of Physics

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    References

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