English

Semi-device independent random number expansion without entanglement

Quantum Physics 2011-12-21 v1

Abstract

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.

Keywords

Cite

@article{arxiv.1108.1480,
  title  = {Semi-device independent random number expansion without entanglement},
  author = {Hong-Wei Li and Zhen-Qiang Yin and Yu-Chun Wu and Xu-Bo Zou and Shuang Wang and Wei Chen and Guang-Can Guo and Zheng-Fu Han},
  journal= {arXiv preprint arXiv:1108.1480},
  year   = {2011}
}