The transition from quantum Zeno to anti-Zeno effects for a qubit in a cavity by varying the cavity frequency

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	The transition from quantum Zeno to anti-Zeno effects for a qubit in a cavity by varying the cavity frequency
	Sun, CP
刊名	PHYSICS LETTERS A
	2012
卷号	376 期号:4 页码:349-357
关键词	ELECTRODYNAMICS DECOHERENCE DECAY
ISSN号	0375-9601
通讯作者	Cao, XF (reprint author), Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China.
英文摘要	We propose a strategy to demonstrate the transition from the quantum Zeno effect (QZE) to the anti-Zeno effect (AZE) using a superconducting qubit coupled to a transmission line cavity, by varying the central frequency of the cavity mode. Our results are obtained without the rotating wave approximation (RWA), and the initial state (a dressed state) is easy to prepare. Moreover, we find that in the presence of both qubit's intrinsic bath and the cavity bath, the emergence of the QZE and the AZE behaviors relies not only on the match between the qubit energy-level-spacing and the central frequency of the cavity mode, but also on the coupling strength between the qubit and the cavity mode. Crown Copyright (C) 2011 Published by Elsevier B.V. All rights reserved.
学科主题	Physics
收录类别	SCI
资助信息	DARPA; AFOSR; National Security Agency (NSA); Laboratory for Physical Sciences (LPS); Army Research Office (USARO); National Science Foundation (NSF) [0726909]; JSPS-RFBR [09-02-92114]; MEXT; FIRST (Funding Program for Innovative RD on ST); National Natural Science Foundation of China [10904126]; Fujian Province Natural Science Foundation [2009J05014]
原文出处	http://dx.doi.org/10.1016/j.physleta.2011.11.045
语种	英语
WOS记录号	WOS:000299607300026
公开日期	2014-04-25
内容类型	期刊论文
源URL	[http://ir.itp.ac.cn/handle/311006/15182]
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. The transition from quantum Zeno to anti-Zeno effects for a qubit in a cavity by varying the cavity frequency[J]. PHYSICS LETTERS A,2012,376(4):349-357.
APA	Sun, CP.(2012).The transition from quantum Zeno to anti-Zeno effects for a qubit in a cavity by varying the cavity frequency.PHYSICS LETTERS A,376(4),349-357.
MLA	Sun, CP."The transition from quantum Zeno to anti-Zeno effects for a qubit in a cavity by varying the cavity frequency".PHYSICS LETTERS A 376.4(2012):349-357.