基于对称信息完备测量的增强纠缠判据
量子物理
2018-08-13 v3
摘要
我们证明了一类特殊的测量,即对称信息完备正算子值测度(SIC POVMs),提供了比基于局域正交可观测量可计算交叉范数或重排判据更强的纠缠探测判据。作为示例,我们在量子比特与qutrit对的简单系统中展示了增强的纠缠探测能力。这一观察凸显了SIC POVMs对于纠缠探测的重要意义。
引用
@article{arxiv.1805.03955,
title = {Enhanced entanglement criterion via symmetric informationally complete measurements},
author = {Jiangwei Shang and Ali Asadian and Huangjun Zhu and Otfried Gühne},
journal= {arXiv preprint arXiv:1805.03955},
year = {2018}
}
备注
final version, 7 pages, 6 figures, 32 references; published in PRA as an Editors' Suggestion