POVM

作品数:20被引量:20H指数:2
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相关领域:理学机械工程更多>>
相关作者:王洪杨本朝陈晓钊余少兰周涛更多>>
相关机构:陕西师范大学中国人民解放军信息工程大学复旦大学四川大学更多>>
相关期刊:《Communications in Theoretical Physics》《微型电脑应用》《Chinese Physics B》《中国科学:物理学、力学、天文学》更多>>
相关基金:国家自然科学基金广东省自然科学基金北京市自然科学基金中国博士后科学基金更多>>
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Detecting coherence with respect to general quantum measurements
《Science China(Information Sciences)》2023年第8期48-56,共9页Yu-Cheng CHEN Jiong CHENG Wen-Zhao ZHANG Cheng-Jie ZHANG 
supported by National Natural Science Foundation of China(Grant Nos.11734015,11704205,12074206);Open Funding Program from State Key Laboratory of Precision Spectroscopy(East China Normal University);K.C.Wong Magna Fund in Ningbo University。
Quantum coherence is crucial in quantum resource theory.Previous studies have mainly focused on standard coherence based on a complete orthogonal reference.Standard coherence has recently been extended to general posi...
关键词:coherence witness general quantum measurements block coherence POVM-based coherence quantum coherence 
Sharing quantum nonlocality in star network scenarios被引量:1
《Frontiers of physics》2023年第3期193-201,共9页Tinggui Zhang Naihuan Jing Shao-Ming Fei 
supported by the National Natural Science Foundation of China(NSFC)under Grant Nos.12126314,12126351,11861031,12075159,and 12171044;the Hainan Provincial Natural Science Foundation of China under Grant No.121RC539;the Specific Research Fund of the Innovation Platform for Academicians of Hainan Province under Grant No.YSPTZX202215;Beijing Natural Science Foundation(Grant No.Z190005);Academy for Multidisciplinary Studies,Capital Normal University;Shenzhen Institute for Quantum Science and Engineering,Southern University of Science and Technology(No.SIQSE202001).
The Bell nonlocality is closely related to the foundations of quantum physics and has significant applications to security questions in quantum key distributions.In recent years,the sharing ability of the Bell nonloca...
关键词:Bell nonlocality quantum network nonlocality sharing POVM measurements 
Bounds on positive operator-valued measure based coherence of superposition
《Chinese Physics B》2023年第5期228-234,共7页郭梦丽 梁津敏 李波 费少明 王志玺 
the National Natural Science Foundation of China(Grant Nos.12075159,12171044,and 12175147);the Natural Science Foundation of Beijing(Grant No.Z190005);the Academician Innovation Platform of Hainan Province;Shenzhen Institute for Quantum Science and Engineering;Southern University of Science and Technology(Grant No.SIQSE202001)。
Quantum coherence is a fundamental feature of quantum physics and plays a significant role in quantum information processing.By generalizing the resource theory of coherence from von Neumann measurements to positive o...
关键词:COHERENCE POVM-based coherence relative entropy l_(1)norm Tsallis relative entropy 
POVM测量组合的联合可测性及其应用
《中国科学:物理学、力学、天文学》2020年第7期1-13,共13页余雪晴 肖书 曹怀信 
国家自然科学基金(编号:11871318,11771009);中央高校基本科研业务费专项资金(编号:GK201703010,GK201801011);陕西省青年科技新星项目(编号:2018KJXX-054)资助。
由一组正算子值测度(POVM)构成的POVM测量组合是描述与研究复合量子系统的非定域性、量子导引及量子关联性的重要工具.本文首先引入由任意多个POVM构成的POVM测量组合MS的联合可测性(Joint Measurability),证明了MS的联合可测性与其相...
关键词:POVM测量组合 相容性 联合可测性 EPR导引 
基于半正定测量的光量子OFDM通信系统在离散高斯噪声环境下的性能分析被引量:1
《微型电脑应用》2019年第2期1-4,共4页赵晓 周小林 
国家自然科学基金项目(61571135)
目前主流的通信方式主要基于传统的无线电通信,面对更复杂的通信环境,这种通信方式越来越难以满足要求,即使是作为补充的经典光通信,也存在诸多瓶颈。为了能够提高通信速率,增强通信安全性,推进量子通信网络实用化进程,研究了采用基于全...
关键词:量子通信 OFDM POVM 离散高斯噪声 
Hierarchical and probabilistic quantum information splitting of an arbitrary two-qubit state via two cluster states被引量:1
《Chinese Physics B》2018年第11期382-389,共8页Wen-Ming Guo Lei-Ru Qin 
Project supported by the National Natural Science Foundation of China(Grant No.61671087)
Based on non-maximally entangled four-particle cluster states, we propose a new hierarchical information splitting protocol to probabilistically realize the quantum state sharing of an arbitrary unknown two-qubit stat...
关键词:cluster state hierarchical quantum information splitting positive operator-valued measurement (POVM) 
Two-qubit entangled state teleportation via optimal POVM and partially entangled GHZ state被引量:5
《Frontiers of physics》2018年第5期251-258,共8页Kan Wang Xu-Tao Yu Zai-Chen Zhang 
This work was supported by the National Natural Science Foundation of China (Grant No. 61601120); China Postdoctoral Science Foundation (Grant No. 2016M591742); and Jiangsu Planned Projects for Postdoctoral Research Funds (Grant No. 1601166C).
Quantum teleportation is of significant meaning in quantum information. In this paper, we study the probabilistic teleportation of a two-qubit entangled state via a partially entangled Greenberger- Horne-Zeilinger (...
关键词:probabilistic teleportation optimal POVM state discrimination average fidelity 
基于优超理论的纠缠纯态转化
《重庆工商大学学报(自然科学版)》2016年第4期53-57,共5页孙照龙 胡占宁 孔令浩 靳瑶瑶 
国家自然科学理论物理专项基金(11447153)
利用优超理论实现了高维量子系统中局域纠缠纯态的确定转化;在一个44维量子系统的低维子系统中两次利用优超理论,并通过正定算符值测量(Positive Operator Valued Measure,POVM)、算子测量、局域操作和经典通信(Local Operations and ...
关键词:纯态转化 优超理论 POVM Von Neumann熵 
Characterizing the dynamics of quantum discord under phase damping with POVM measurements
《Chinese Physics B》2015年第10期53-58,共6页蒋峰建 叶剑锋 闫新虎 吕海江 
Project supported by the National Natural Science Foundation of China(Grant Nos.11305074,11135002,and 11275083)
In the analysis of quantum discord, the minimization of average entropy traditionally involved over orthogonal projective measurements may be attained at more optimal decompositions by using the positive-operator-valu...
关键词:quantum steering ellipsoid quantum discord DECOHERENCE 
Implementation of Positive Operator-Valued Measure in Passive Faraday Mirror Attack
《Communications in Theoretical Physics》2015年第3期296-302,共7页王卫龙 高明 马智 
Supported by National Natural Science Foundation of China under Grant Nos.61472446,U1204602;National High Technology Research and Development Program of China under Grant No.2011AA010803;the Open Project Program of the State Key Laboratory of Mathematical Engineering and Advanced Computing under Grant No.2013A14
Passive Faraday-mirror(PFM) attack is based on imperfect Faraday mirrors in practical quantum cryptography systems and a set of three-dimensional Positive Operator-Valued Measure(POVM) operators plays an important rol...
关键词:Faraday mirrors passive Faraday mirror attack POVM linear optics 
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