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

Authors：Ren Min^*; Wu E; Liang Yan; Jian Yi; Wu Guang; Zeng Heping

Source：Physical Review A (Atomic, Molecular and Optical Physics), 2011, 83(2).

DOI：10.1103/PhysRevA.83.023820

• Generation rate
• High efficiency
• Number generator
• Photon flux
• Photon number resolving detector
• Photon-number distribution
• Photon-number-resolving detectors
• Random number generators
• Random Numbers
• System clock

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.