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arXiv:1107.4438quant-ph

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

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

Abstract

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.

arXiv comments
Journal reference
Appl. Phys. Lett. 98, 231103 (2011)
DOI
doi:10.1063/1.3597793
Subjects
quant-phQuantum Physics

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Discussed in comments2 threads

  1. Show HN: Live Quantum Random Numbers 1 comment

    • I couldn't find any photograph or diagram of the device that generate the numbers in the web page. I worked with optic tables, and I'm just curious and want more details. I only found the preprint: http://arxiv.org/abs/1107.4438 , so they use an 1550 nm infrared laser. The…

      gus_massaView on HNParent context

  2. World's Fastest Random Number Generator from 'Sounds of Silence' 1 comment

    • Here's the researcher's site: http://photonics.anu.edu.au/qoptics/Research/qrng.php They link to their paper there, but the link is to a journal with a paywall. Here's a free copy of their paper: http://arxiv.org/abs/1107.4438

      tzsView on HNParent context

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