Experimentally Generated Random Numbers Certified by the Impossibility of Superluminal Signaling

2017/02/16 by Peter Bierhorst, Bierhorst, Peter, Emanuel Knill +18 · 2 citations
Physics and Astronomy · #FOS: Physical sciences #Quantum Physics (quant-ph) #Quantum optics and atomic interactions #quant-ph

paper · pdf · doi:10.48550/arxiv.1702.05178

32 pages

arxiv created 2017/02/16 · openalex publication_date 2017/02/16 · arxiv updated 2017/02/20 · openalex created_date 2018/04/24 · openalex updated_date 2026/07/28

Abstract

Random numbers are an important resource for applications such as numerical simulation and secure communication. However, it is difficult to certify whether a physical random number generator is truly unpredictable. Here, we exploit the phenomenon of quantum nonlocality in a loophole-free photonic Bell test experiment for the generation of randomness that cannot be predicted within any physical theory that allows one to make independent measurement choices and prohibits superluminal signaling. To certify and quantify the randomness, we describe a new protocol that performs well in an experimental regime characterized by low violation of Bell inequalities. Applying an extractor function to our data, we obtained 256 new random bits, uniform to within 0.001.

Cited by

• Experimentally Generated Randomness Certified by the Impossibility of Superluminal Signals
• Quantum Randomness Generation by Probability Estimation with Classical Side Information

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