Nonlocality from local contextuality
Quantum Physics
2016-11-24 v2
Abstract
We experimentally show that nonlocality can be produced from single-particle contextuality by using two-particle correlations which do not violate any Bell inequality by themselves. This demonstrates that nonlocality can come from an {\em a priori} different simpler phenomenon, and connects contextuality and nonlocality, the two critical resources for, respectively, quantum computation and secure communication. From the perspective of quantum information, our experiment constitutes a proof of principle that quantum systems can be used simultaneously for both quantum computation and secure communication.
Cite
@article{arxiv.1603.08254,
title = {Nonlocality from local contextuality},
author = {Bi-Heng Liu and Xiao-Min Hu and Jiang-Shan Chen and Yun-Feng Huang and Yong-Jian Han and Chuan-Feng Li and Guang-Can Guo and Adán Cabello},
journal= {arXiv preprint arXiv:1603.08254},
year = {2016}
}
Comments
6 pages, 4 figures