File: 10 October 2026 · Source date: 10 October 2026
Bell correlations
Certain local latent variable explanations are excluded when the measurement results of entangled particles violate the Bell inequality. These correlations can be used to generate new random bits without relying entirely on the internal details of the devices.
From seed to longer output
Bierhorst and colleagues selected the measurement settings with a small initial randomness and obtained a longer and certified random sequence from the experiment result. The certificate depends on the assumptions of the experiment and the level of statistical confidence.
Borders
Unclosed experimental gaps, communication of devices, or poor starting seed can weaken the assurance. Quantum randomness is a very careful protocol rather than the slogan “unreasonable data”.
discussion question
Do you find hardware or mathematical certification more important for relying on a random number generator?
Resources and further reading
Nature — Experimentally generated randomness certified by the impossibility of superluminal signals ↗NIST — Bell Test Randomness Beacon ↗Share your answer
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