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Ai, Q; Xu, DZ; Yi, S; Kofman, AG; Sun, CP; Nori, F; Sun, CP (reprint author), RIKEN, CEMS, 2-1 Hirosawa, Wako, Saitama 3510198, Japan.
Quantum anti-Zeno effect without wave function reduction
Source PublicationSCIENTIFIC REPORTS
Language英语
KeywordHidden-variable Theories Decay Paradox Decoherence Collapse System
AbstractWe study the measurement-induced enhancement of the spontaneous decay for a two-level subsystem, where measurements are treated as couplings between the excited state and an auxiliary state rather than the von Neumann's wave function reduction. The photon radiated in a fast decay of the atom, from the auxiliary state to the excited state, triggers a quasi-measurement, as opposed to a projection measurement. Our use of the term "quasi-measurement" refers to a "coupling-based measurement". Such frequent quasi-measurements result in an exponential decay of the survival probability of atomic initial state with a photon emission following each quasi-measurement. Our calculations show that the effective decay rate is of the same form as the one based on projection measurements. The survival probability of the atomic initial state obtained by tracing over all the photon states is equivalent to that of the atomic initial state with a photon emission following each quasi-measurement.
2013
ISSN2045-2322
Volume3Issue:-Pages:1752
Subject AreaPhysics
Indexed BySCI
Funding OrganizationARO; JSPS-RFBR [12-02-92100]; MEXT Kakenhi on Quantum Cybernetics; JSPS via its FIRST program; NSFC [10935010]; China Postdoctoral Science Foundation [20100470584] ; ARO; JSPS-RFBR [12-02-92100]; MEXT Kakenhi on Quantum Cybernetics; JSPS via its FIRST program; NSFC [10935010]; China Postdoctoral Science Foundation [20100470584] ; ARO; JSPS-RFBR [12-02-92100]; MEXT Kakenhi on Quantum Cybernetics; JSPS via its FIRST program; NSFC [10935010]; China Postdoctoral Science Foundation [20100470584] ; ARO; JSPS-RFBR [12-02-92100]; MEXT Kakenhi on Quantum Cybernetics; JSPS via its FIRST program; NSFC [10935010]; China Postdoctoral Science Foundation [20100470584]
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itp.ac.cn/handle/311006/15367
Collection理论物理所科研产出_SCI论文
Corresponding AuthorSun, CP (reprint author), RIKEN, CEMS, 2-1 Hirosawa, Wako, Saitama 3510198, Japan.
Recommended Citation
GB/T 7714
Ai, Q,Xu, DZ,Yi, S,et al. Quantum anti-Zeno effect without wave function reduction[J]. SCIENTIFIC REPORTS,2013,3(-):1752.
APA Ai, Q.,Xu, DZ.,Yi, S.,Kofman, AG.,Sun, CP.,...&Sun, CP .(2013).Quantum anti-Zeno effect without wave function reduction.SCIENTIFIC REPORTS,3(-),1752.
MLA Ai, Q,et al."Quantum anti-Zeno effect without wave function reduction".SCIENTIFIC REPORTS 3.-(2013):1752.
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