Bell inequalities versus entanglement and mixedness for a class of two - qubit states
Quantum Physics
2009-11-10 v1
Abstract
For a class of mixed two -qubit states we show that it is not possible to discriminate between states violating or non - violating Bell - CHSH inequalities, knowing only their entanglement and mixedness. For a large set of possible values of these quantities, we construct pairs of states with the same entanglement and mixedness such that one state is violating but the other is non - violating Bell - CHSH inequality.
Keywords
Cite
@article{arxiv.quant-ph/0402112,
title = {Bell inequalities versus entanglement and mixedness for a class of two - qubit states},
author = {L. Derkacz and L. Jakobczyk},
journal= {arXiv preprint arXiv:quant-ph/0402112},
year = {2009}
}
Comments
11 pages