Characterization of four-qubit states via Bell inequalities
Quantum Physics
2013-07-26 v1
Abstract
A set of Bell inequalities classifying the quantum entanglement of four-qubit states is presented. These inequalities involve only two measurement settings per observer and can characterize fully separable, bi-separable and tri-separable quantum states. In addition, a quadratic inequality of the Bell operators for four-qubit systems is derived.
Keywords
Cite
@article{arxiv.1307.6656,
title = {Characterization of four-qubit states via Bell inequalities},
author = {Hui Zhao and Xing-Hua Zhang and Shao-Ming Fei and Zhi-Xi Wang},
journal= {arXiv preprint arXiv:1307.6656},
year = {2013}
}