Experimental test of quantum contextuality in neutron interferometry
Quantum Physics
2009-07-28 v2
Abstract
We performed an experimental test of the Kochen-Specker theorem based on an inequality derived from the Peres-Mermin proof, using spin-path (momentum) entanglement in a single neutron system. Following the strategy proposed by Cabello et al. [Phys. Rev. Lett. 100, 130404 (2008)], a Bell-like state was generated and three expectation values were determined. The observed violation 2.291 +/- 0.008 > 1 clearly shows that quantum mechanical predictions cannot be reproduced by noncontextual hidden variables theories.
Cite
@article{arxiv.0904.4576,
title = {Experimental test of quantum contextuality in neutron interferometry},
author = {H. Bartosik and J. Klepp and C. Schmitzer and S. Sponar and A. Cabello and H. Rauch and Y. Hasegawa},
journal= {arXiv preprint arXiv:0904.4576},
year = {2009}
}
Comments
REVTeX4, 4 pages, 3 figures