Concurrence in arbitrary dimensions
量子物理
2009-11-07 v1
摘要
We argue that a complete characterisation of quantum correlations in bipartite systems of many dimensions may require a quantity which, even for pure states, does not reduce to a single number. Subsequently, we introduce multi-dimensional generalizations of concurrence and find evidence that they may provide useful tools for the analysis of quantum correlations in mixed bipartite states. We also introudce {\it biconcurrence} that leads to a necessary and sufficient condition for separability.
引用
@article{arxiv.quant-ph/0107147,
title = {Concurrence in arbitrary dimensions},
author = {Piotr Badziag and Piotr Deuar and Michal Horodecki and Pawel Horodecki and Ryszard Horodecki},
journal= {arXiv preprint arXiv:quant-ph/0107147},
year = {2009}
}
备注
RevTeX 7 pages