Perfect Test of Entanglement for Two-level Systems
Quantum Physics
2016-11-15 v1
Abstract
A 3-setting Bell-type inequality enforced by the indeterminacy relation of complementary local observables is proposed as an experimental test of the 2-qubit entanglement. The proposed inequality has an advantage of being a sufficient and necessary criterion of the separability. Therefore any entangled 2-qubit state cannot escape the detection by this kind of tests. It turns out that the orientation of the local testing observables plays a crucial role in our perfect detection of the entanglement.
Cite
@article{arxiv.quant-ph/0301030,
title = {Perfect Test of Entanglement for Two-level Systems},
author = {Sixia Yu and Jian-Wei Pan and Zeng-Bing Chen and Yong-De Zhang},
journal= {arXiv preprint arXiv:quant-ph/0301030},
year = {2016}
}
Comments
4 pages, RevTeX