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题名: Experimental demonstration of the quantum Zeno effect in NMR with entanglement-based measurements
作者: Zheng, WQ ;  Xu, DZ ;  Peng, XH ;  Zhou, XY ;  Du, JF ;  Sun, CP
刊名: PHYSICAL REVIEW A
出版日期: 2013
卷号: 87, 期号:3, 页码:32112
关键词: COLLAPSE ;  PARADOX
学科分类: Physics
通讯作者: Zheng, WQ (reprint author), Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China.
部门归属: [Zheng, Wenqiang; Peng, Xinhua; Zhou, Xianyi; Du, Jiangfeng] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China; [Zheng, Wenqiang; Peng, Xinhua; Zhou, Xianyi; Du, Jiangfeng] Univ Sci & Technol China, Dept Modern Phys, Hefei 230026, Peoples R China; [Xu, D. Z.] Chinese Acad Sci, Inst Theoret Phys, State Key Lab Theoret Phys, Beijing 100190, Peoples R China; [Sun, C. P.] Beijing Computat Sci Res Ctr, Beijing 100084, Peoples R China
英文摘要: We experimentally demonstrate a dynamic fashion of quantum Zeno effect in nuclear magnetic resonance systems. The frequent measurements are implemented through quantum entanglement between the target qubit(s) and the measuring qubit, which dynamically results from the unitary evolution of duration tau(m) due to dispersive coupling. Experimental results testify to the presence of "the critical measurement time effect," that is, the quantum Zeno effect does not occur when tm takes some critical values, even if the measurements are frequent enough. Moreover, we provide an experimental demonstration of an entanglement preservation mechanism based on such a dynamic quantum Zeno effect. DOI: 10.1103/PhysRevA.87.032112
资助者: CAS; NNSF [10975124, 11121403, 10935010, 11074261, 10834005, 91021005, 11161160553]; NFRP [2007CB925200]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000316319300003
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15398
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Recommended Citation:
Zheng, WQ,Xu, DZ,Peng, XH,et al. Experimental demonstration of the quantum Zeno effect in NMR with entanglement-based measurements[J]. PHYSICAL REVIEW A,2013,87(3):32112.
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