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 wit-nesses from a limited fixed set of local measurements(M4).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 quan-tum 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):2047-2055
A类：
B类：
Experimental,witnessing,entangled,states,limited,local,measurements,We,experimentally,demonstrate,method,detection,entanglement,via,construction,from,fixed,set,M4,Such,does,not,require,priori,knowledge,about,form,witnesses,It,suitable,scenario,where,full,tomography,available,but,only,resource,pure,two,qubit,mixed,which,emerge,photonic,implementation,controllable,quan,tum,noisy,channels,select,are,motivated,by,realistic,conditions,confirm,works,well,both,cases,Furthermore,possible,generalizations,higher,dimensional,bipartite,systems,have,been,considered,can,potentially,indecomposable,Our,results,show,perfect,validity,indicates,that,even,used,quick,further,provide,practical,test,bed,experiments
AB值：
0.592103
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