Quantum anti-Zeno effect without wave function reduction

CORC > 理论物理研究所 > 中国科学院理论物理研究所 > 理论物理所科研产出 > 理论物理所1978-2010年知识产出

	Quantum anti-Zeno effect without wave function reduction
	Sun, CP; Yi, S
刊名	SCIENTIFIC REPORTS
	2013
卷号	3 期号:-页码:1752
关键词	HIDDEN-VARIABLE THEORIES DECAY PARADOX DECOHERENCE COLLAPSE SYSTEM
ISSN号	2045-2322
通讯作者	Sun, CP (reprint author), RIKEN, CEMS, 2-1 Hirosawa, Wako, Saitama 3510198, Japan.
英文摘要	We 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.
学科主题	Physics
收录类别	SCI
资助信息	ARO; JSPS-RFBR [12-02-92100]; MEXT Kakenhi on Quantum Cybernetics; JSPS via its FIRST program; NSFC [10935010]; China Postdoctoral Science Foundation [20100470584]
原文出处	http://dx.doi.org/10.1038/srep01752
语种	英语
WOS记录号	WOS:000318537900001
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15367]
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	Sun, CP,Yi, S. Quantum anti-Zeno effect without wave function reduction[J]. SCIENTIFIC REPORTS,2013,3(-):1752.
APA	Sun, CP,&Yi, S.(2013).Quantum anti-Zeno effect without wave function reduction.SCIENTIFIC REPORTS,3(-),1752.
MLA	Sun, CP,et al."Quantum anti-Zeno effect without wave function reduction".SCIENTIFIC REPORTS 3.-(2013):1752.