Semi-device independent random number expansion without entanglement

Details Semi-device independent random number expansion without entanglement Semi-device independent random number expansion without entanglement

2011-08-06

arxiv.org/abs/1108.1480v1

Physics

Quantum Physics

Scientific paper

10.1103/PhysRevA.84.034301

By testing the classical correlation violation between two systems, the random number can be expanded and certified without applying classical statistical method. In this work, we propose a new random number expansion protocol without entanglement, and the randomness can be guaranteed only by the 2-dimension quantum witness violation. Furthermore, we only assume that the dimensionality of the system used in the protocol has a tight bound, and the whole protocol can be regarded as a semi-device independent black-box scenario. Comparing with the device independent random number expansion protocol based on entanglement, our protocol is much easier to implement and test.

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