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题名: The transition from quantum Zeno to anti-Zeno effects for a qubit in a cavity by varying the cavity frequency
作者: Cao, XF ;  Ai, Q ;  Sun, CP ;  Nori, F
刊名: PHYSICS LETTERS A
出版日期: 2012
卷号: 376, 期号:4, 页码:349-357
关键词: ELECTRODYNAMICS ;  DECOHERENCE ;  DECAY
学科分类: Physics
通讯作者: Cao, XF (reprint author), Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China.
部门归属: [Cao, Xiufeng] Xiamen Univ, Dept Phys, Xiamen 361005, Peoples R China; [Cao, Xiufeng] Xiamen Univ, Inst Theoret Phys & Astrophys, Xiamen 361005, Peoples R China; [Cao, Xiufeng; Ai, Qing; Sun, Chang-Pu; Nori, Franco] RIKEN, Adv Sci Inst, Wako, Saitama 3510198, Japan; [Ai, Qing; Sun, Chang-Pu] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China; [Nori, Franco] Univ Michigan, Dept Phys, Ann Arbor, MI 48109 USA
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.
资助者: 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]
收录类别: SCI
原文出处: 查看原文
语种: 英语
WOS记录号: WOS:000299607300026
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/15182
Appears in Collections:理论物理所2012年知识产出_期刊论文

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Recommended Citation:
Cao, XF,Ai, Q,Sun, CP,et al. 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.
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