Entropy inequalities and Bell inequalities for two-qubit systems
Quantum Physics
2009-11-10 v5
Abstract
Sufficient conditions for (the non-violation of) the Bell-CHSH inequalities in a mixed state of a two-qubit system are: 1) The linear entropy of the state is not smaller than 0.5, 2) The sum of the conditional linear entropies is non-negative, 3) The von Neumann entropy is not smaller than 0.833, 4) The sum of the conditional von Neumann entropies is not smaller than 0.280.
Cite
@article{arxiv.quant-ph/0301171,
title = {Entropy inequalities and Bell inequalities for two-qubit systems},
author = {Emilio Santos},
journal= {arXiv preprint arXiv:quant-ph/0301171},
year = {2009}
}
Comments
Errors corrected. See L. Jakobcyk, quant-ph/0409087