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Quantum Zeno and anti-Zeno effects measured by transition probabilities

文献类型：期刊论文

作者Zhang, WX ; Kofman, AG ; Zhuang, J ; You, JQ ; Nori, F
刊名PHYSICS LETTERS A
出版日期2013
卷号377期号:31-33页码:1837-1843
ISSN号0375-9601
关键词ELECTRON-SPIN DECOHERENCE SUPPRESSION FREQUENCY DECAY STATE DOT
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
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)
收录类别SCI
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
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.

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来源：理论物理研究所

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