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Quantum anti-Zeno effect without rotating wave approximation
Ai, Qing; Li, Yong; Zheng, Hang; Sun, C. P.; Ai, Q , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
2010
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号81期号:4页码:-
摘要In this article, we systematically study the spontaneous decay phenomenon of a two-level system under the influences of both its environment and repetitive measurements. In order to clarify some well-established conclusions about the quantum Zeno effect (QZE) and the quantum anti-Zeno effect (QAZE), we do not use the rotating wave approximation (RWA) in obtaining an effective Hamiltonian. We examine various spectral distributions by making use of our present approach in comparison with other approaches. It is found that with respect to a bare excited state even without the RWA, the QAZE can still happen for some cases, for example, the interacting spectra of hydrogen. However, for a physical excited state, which is a renormalized dressed state of the atomic state, the QAZE disappears and only the QZE remains. These discoveries inevitably show a transition from the QZE to the QAZE as the measurement interval changes.
部门归属[Ai, Q; Sun, CP] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Li, Y] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China; [Li, Y] Univ Hong Kong, Ctr Theoret & Computat Phys, Hong Kong, Hong Kong, Peoples R China; [Zheng, H] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200030, Peoples R China
关键词System Decay State Atom
学科领域Physics
资助者NSFC[10974209, 10935010]; National 973 program[2006CB921205] ; NSFC[10974209, 10935010]; National 973 program[2006CB921205] ; NSFC[10974209, 10935010]; National 973 program[2006CB921205] ; NSFC[10974209, 10935010]; National 973 program[2006CB921205]
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收录类别SCI
资助者NSFC[10974209, 10935010]; National 973 program[2006CB921205] ; NSFC[10974209, 10935010]; National 973 program[2006CB921205] ; NSFC[10974209, 10935010]; National 973 program[2006CB921205] ; NSFC[10974209, 10935010]; National 973 program[2006CB921205]
WOS记录号WOS:000277227300034
引用统计
被引频次:47[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5129
专题1978-2010年知识产出
通讯作者Ai, Q , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
推荐引用方式
GB/T 7714
Ai, Qing,Li, Yong,Zheng, Hang,et al. Quantum anti-Zeno effect without rotating wave approximation[J]. PHYSICAL REVIEW A,2010,81(4):-.
APA Ai, Qing,Li, Yong,Zheng, Hang,Sun, C. P.,&Ai, Q , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China.(2010).Quantum anti-Zeno effect without rotating wave approximation.PHYSICAL REVIEW A,81(4),-.
MLA Ai, Qing,et al."Quantum anti-Zeno effect without rotating wave approximation".PHYSICAL REVIEW A 81.4(2010):-.
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