Experimental demonstration of the quantum Zeno effect in NMR with entanglement-based measurements

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	Experimental demonstration of the quantum Zeno effect in NMR with entanglement-based measurements
	Sun, CP
刊名	PHYSICAL REVIEW A
	2013
卷号	87 期号:3 页码:32112
关键词	COLLAPSE PARADOX
ISSN号	1050-2947
通讯作者	Zheng, WQ (reprint author), Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, 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
学科主题	Physics
收录类别	SCI
资助信息	CAS; NNSF [10975124, 11121403, 10935010, 11074261, 10834005, 91021005, 11161160553]; NFRP [2007CB925200]
原文出处	http://dx.doi.org/10.1103/PhysRevA.87.032112
语种	英语
WOS记录号	WOS:000316319300003
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15398]
专题	理论物理研究所_理论物理所1978-2010年知识产出
推荐引用方式 GB/T 7714	Sun, CP. Experimental demonstration of the quantum Zeno effect in NMR with entanglement-based measurements[J]. PHYSICAL REVIEW A,2013,87(3):32112.
APA	Sun, CP.(2013).Experimental demonstration of the quantum Zeno effect in NMR with entanglement-based measurements.PHYSICAL REVIEW A,87(3),32112.
MLA	Sun, CP."Experimental demonstration of the quantum Zeno effect in NMR with entanglement-based measurements".PHYSICAL REVIEW A 87.3(2013):32112.