典型文献
Experimental witnessing for entangled states with limited local measurements
文献摘要：
We experimentally demonstrate a method for detection of entanglement via construction of entanglement witnesses from a limited fixed set of local measurements (M). Such a method does not require a priori knowledge about the form of the entanglement witnesses. It is suitable for a scenario where a full state tomography is not available, but the only resource is a limited set of M. We demonstrate the method on pure two-qubit entangled states and mixed two-qubit entangled states, which emerge from photonic implementation of controllable quantum noisy channels. The states we select are motivated by realistic experimental conditions, and we confirm it works well for both cases. Furthermore, possible generalizations to higher-dimensional bipartite systems have been considered, which can potentially detect both decomposable and indecomposable entanglement witnesses. Our experimental results show perfect validity of the method, which indicates that even a limited set of local measurements can be used for quick entanglement detection and further provide a practical test bed for experiments with entanglement witnesses.
文献关键词：
中图分类号：
作者姓名：
Gaoyan Zhu;Chengjie Zhang;Kunkun Wang;Lei Xiao;Peng Xue
作者机构：
Beijing Computational Science Research Center, Beijing 100084, China;School of Physical Science and Technology, Ningbo University, Ningbo 315211, China;State Key Laboratory of Precision Spectroscopy, School of Physics and Electronic Science, East China Normal University, Shanghai 200241, China
文献出处：
引用格式：
[1]Gaoyan Zhu;Chengjie Zhang;Kunkun Wang;Lei Xiao;Peng Xue-.Experimental witnessing for entangled states with limited local measurements)[J].光子学研究（英文）,2022(09):2047
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AB值：
0.591473
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