期刊
SCIENTIFIC REPORTS
卷 3, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/srep01627
关键词
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资金
- National Basic Research Program of China [2011CBA00300, 2011CBA00301, 2011CBA00302]
- National Natural Science Foundation of China [61073174, 61033001, 61061130540]
- Thousand Young Talents program
The intrinsic unpredictability of measurements in quantum mechanics can be used to produce genuine randomness. Here, we demonstrate a random number generator where the randomness is certified by quantum contextuality in connection with the Kochen-Specker theorem. In particular, we generate random numbers from measurements on a single trapped ion with three internal levels, and certify the generated randomness by showing a bound on the minimum entropy through observation of violation of the Klyachko-Can-Binicioglu-Shumovsky (KCBS) inequality. Concerning the test of the KCBS inequality, we close the detection efficiency loophole for the first time and make it relatively immune to the compatibility loophole. In our experiment, we generate 13105 random numbers that are guaranteed to have 5.2x10(4) bits of minimum entropy with a 99% confidence level.
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