Bell inequality for qubits based on the Cauchy-Schwarz inequality
Quantum Physics
2015-05-13 v2
Abstract
We develop a systematic approach to establish Bell inequalities for qubits based on the Cauchy-Schwarz inequality. We also use the concept of distinct "roots" of Bell function to classify some well-known Bell inequalities for qubits. As applications of the approach, we present three new and tight Bell inequalities for four and three qubits, respectively.
Keywords
Cite
@article{arxiv.0808.2287,
title = {Bell inequality for qubits based on the Cauchy-Schwarz inequality},
author = {Jing-Ling Chen and Dong-Ling Deng},
journal= {arXiv preprint arXiv:0808.2287},
year = {2015}
}
Comments
4 pages. Accepted for publication in Physical Review A