Experimentally faking the violation of Bell's inequalities
Quantum Physics
2011-10-25 v3
Abstract
Entanglement witnesses such as Bell inequalities are frequently used to prove the non-classicality of a light source and its suitability for further tasks. By demonstrating Bell inequality violations using classical light in common experimental arrangements, we highlight why strict locality and efficiency conditions are not optional, particularly in security-related scenarios.
Keywords
Cite
@article{arxiv.1106.3224,
title = {Experimentally faking the violation of Bell's inequalities},
author = {Ilja Gerhardt and Qin Liu and Antía Lamas-Linares and Johannes Skaar and Valerio Scarani and Vadim Makarov and Christian Kurtsiefer},
journal= {arXiv preprint arXiv:1106.3224},
year = {2011}
}
Comments
Added discussion of countermeasures, updated references. This version is published in Phys. Rev. Lett. 5 pages, 4 figures