Quantum Zeno and anti-Zeno effects measured by transition probabilities

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	Quantum Zeno and anti-Zeno effects measured by transition probabilities
	Zhang, WX ; Kofman, AG ; Zhuang, J ; You, JQ ; Nori, F
刊名	PHYSICS LETTERS A
	2013
卷号	377 期号:31-33 页码:1837-1843
关键词	ELECTRON-SPIN DECOHERENCE SUPPRESSION FREQUENCY DECAY STATE DOT
ISSN号	0375-9601
通讯作者	Zhang, WX (reprint author), Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Hubei, Peoples R China.
英文摘要	Using numerical calculations, we compare the transition probabilities of many spins in random magnetic fields, subject to either frequent projective measurements, frequent phase modulations, or a mix of modulations and measurements. For various distribution functions, we find the transition probability under frequent modulations is suppressed most if the pulse delay is short and the evolution time is larger than a critical value. Furthermore, decay freezing occurs only under frequent modulations as the pulse delay approaches zero. In the large pulse-delay region, however, the transition probabilities under frequent modulations are highest among the three control methods. (C) 2013 Elsevier B.V. All rights reserved.
学科主题	Physics
收录类别	SCI
资助信息	National Basic Research Program of China [2009CB929300]; National Natural Science Foundation of China [10904017, 11275139]; NCET; Specialized Research Fund for the Doctoral Program of Higher Education of China [20090071120013]; Shanghai Pujiang Program [10PJ1401300]; Army Research Office, JSPS-RFBR [12-02-92100]; MEXT Kakenhi on Quantum Cybernetics; Funding Program for Innovative R&D on ST (FIRST)
原文出处	http://dx.doi.org/10.1016/j.physleta.2013.05.029
语种	英语
WOS记录号	WOS:000320908700013
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15258]
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	Zhang, WX,Kofman, AG,Zhuang, J,et al. Quantum Zeno and anti-Zeno effects measured by transition probabilities[J]. PHYSICS LETTERS A,2013,377(31-33):1837-1843.
APA	Zhang, WX,Kofman, AG,Zhuang, J,You, JQ,&Nori, F.(2013).Quantum Zeno and anti-Zeno effects measured by transition probabilities.PHYSICS LETTERS A,377(31-33),1837-1843.
MLA	Zhang, WX,et al."Quantum Zeno and anti-Zeno effects measured by transition probabilities".PHYSICS LETTERS A 377.31-33(2013):1837-1843.