Quantum random-number generator based on a photon-number-resolving detector

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Abstract

We demonstrated a high-efficiency quantum random number generator which takes inherent advantage of the photon number distribution randomness of a coherent light source. This scheme was realized by comparing the photon flux of consecutive pulses with a photon number resolving detector. The random bit generation rate could reach 2.4 MHz with a system clock of 6.0 MHz, corresponding to a random bit generation efficiency as high as 40%. The random number files passed all the stringent statistical tests.

Original languageEnglish
Article number023820
JournalPhysical Review A - Atomic, Molecular, and Optical Physics
Volume83
Issue number2
DOIs
StatePublished - 23 Feb 2011
Externally publishedYes

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