Knowledge Management System of Institute of Theoretical Physics, CAS
Ai, Qing; Li, Yong; Zheng, Hang; Sun, C. P. ; Ai, Q , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
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| Quantum anti-Zeno effect without rotating wave approximation | |
| Source Publication | PHYSICAL REVIEW A
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| Keyword | System Decay State Atom |
| Abstract | 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. |
| 2010 | |
| ISSN | 1050-2947 |
| Volume | 81Issue:4Pages:- |
| Subject Area | Physics |
| Indexed By | SCI |
| Funding Organization | 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] |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.itp.ac.cn/handle/311006/5129 |
| Collection | SCI期刊论文 |
| Corresponding Author | Ai, Q , Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China |
| Recommended Citation 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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