关于秩二信道的并发度与纠缠
量子物理
2007-05-23 v1
摘要
若可由仅两个Kraus算子表示，则秩二信道的并发度及进一步的纠缠量化指标可被显式计算。对于秩二单量子比特信道这一子类，几乎所有细节均可得。其背后存在一个简单的几何图像，很好地解释了反线性的作用。
引用
@article{arxiv.quant-ph/0605103,
title = {On Concurrence and Entanglement of Rank Two Channels},
author = {Armin Uhlmann},
journal= {arXiv preprint arXiv:quant-ph/0605103},
year = {2007}
}
备注
20 pages. An appendix is added. An error in (45) - (47) and known (to me) misspellings are corrected