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arXiv · 2006.11137

Certified Randomness from Remote State Preparation Dimension Witness

Xing Chen·Kai Redeker·Robert Garthoff·Wenjamin Rosenfeld·Jörg Wrachtrup·Ilja Gerhardt
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Abstract

Randomness in Bell test data can be device-independently certified by Bell's theorem without placing assumptions about the experimental devices. The device-independent randomness has very demanding requirement about the experimental devices and relatively lower output randomness. With the same Bell test data we can extract substantially more randomness without using Bell's theorem. To achieve this goal, we introduce a remote state preparation dimension witness and a semi-device-independent randomness certification model which is based on it. This is one important step towards practical use of Bell test in randomness generation.

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Xing Chen, Kai Redeker, Robert Garthoff, Wenjamin Rosenfeld, Jörg Wrachtrup, Ilja Gerhardt. 2020-06-19. Certified Randomness from Remote State Preparation Dimension Witness. https://doi.org/10.1103/physreva.103.042211

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