论文标题
基于$λ$的操作纠缠检测
Operational Entanglement Detection Based on $Λ$-Moments
论文作者
论文摘要
我们介绍了$λ$ - 大小写，相对于任何正面地图$λ$。我们表明，这些$λ$ - amoments可以有效地表征未知量子状态的纠缠而没有其先前的重建。提出了基于$λ$ - ammoments必需和足够的可分离性标准，以及必要的优化标准，其中包括[\ href {https://link.org.org/doi/10.1103/physrevlett.127.06050504}中的[\ href {莱特牧师。 \ textbf {127}，060504（2021）}]作为特殊情况。给出了详细的示例，以表明我们的标准可以检测到绑定的纠缠，而纠缠无法通过正面部分转置标准来识别，并且具有显式的测量算子可以实验测量相应的$λ$ - amments。
We introduce $Λ$-moments with respect to any positive map $Λ$. We show that these $Λ$-moments can effectively characterize the entanglement of unknown quantum states without theirs prior reconstructions. Based on $Λ$-moments necessary and sufficient separability criteria, as well as necessary optimized criteria are presented, which include the ones in [\href{https://link.aps.org/doi/10.1103/PhysRevLett.127.060504}{Phys. Rev. Lett. \textbf{127}, 060504 (2021)}] as special cases. Detailed example is given to show that our criteria can detect bound entanglement that can not be identified by positive partial transpose criterion, with the explicit measurement operators to experimentally measure the corresponding $Λ$-moments.
