A Fast and Compact Quantum Random Number Generator

Details A Fast and Compact Quantum Random Number Generator A Fast and Compact Quantum Random Number Generator

1999-12-28

arxiv.org/abs/quant-ph/9912118v1

Physics

Quantum Physics

23 pages, 6 Figs. To appear in Rev. Sci. Instr

Scientific paper

10.1063/1.1150518

We present the realization of a physical quantum random number generator based on the process of splitting a beam of photons on a beam splitter, a quantum mechanical source of true randomness. By utilizing either a beam splitter or a polarizing beam splitter, single photon detectors and high speed electronics the presented devices are capable of generating a binary random signal with an autocorrelation time of 11.8 ns and a continuous stream of random numbers at a rate of 1 Mbit/s. The randomness of the generated signals and numbers is shown by running a series of tests upon data samples. The devices described in this paper are built into compact housings and are simple to operate.

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