Separability Criteria from Uncertainty Relations
量子物理
2009-11-10 v1
摘要
We explain several separability criteria which rely on uncertainty relations. For the derivation of these criteria uncertainty relations in terms of variances or entropies can be used. We investigate the strength of the separability conditions for the case of two qubits and show how they can improve entanglement witnesses.
引用
@article{arxiv.quant-ph/0409140,
title = {Separability Criteria from Uncertainty Relations},
author = {Otfried Guehne and Maciej Lewenstein},
journal= {arXiv preprint arXiv:quant-ph/0409140},
year = {2009}
}
备注
4 pages, 2 figures, contribution for the proceedings of QCMC 2004 in Glasgow