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题名: Dynamic sensitivity of photon-dressed atomic ensemble with quantum criticality
作者: Huang, Jin-Feng ;  Li, Yong ;  Liao, Jie-Qiao ;  Kuang, Le-Man ;  Sun, C. P.
刊名: PHYSICAL REVIEW A
出版日期: 2009
卷号: 80, 期号:6, 页码:-
关键词: QUANTIZED RADIATION FIELD ;  STATISTICAL MECHANICS ;  PHASE-TRANSITION ;  DICKE-MODEL
学科分类: Physics
通讯作者: Huang, JF , Hunan Normal Univ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Minist Educ, Changsha 410081, Peoples R China
部门归属: [Huang, JF; Kuang, LM] Hunan Normal Univ, Key Lab Low Dimens Quantum Struct & Quantum Contr, Minist Educ, Changsha 410081, Peoples R China; [Huang, JF; Kuang, LM] Hunan Normal Univ, Dept Phys, Changsha 410081, Peoples R China; [Li, Y] Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China; [Liao, JQ; Sun, CP] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China
英文摘要: We study the dynamic sensitivity of an atomic ensemble dressed by a single-mode cavity field (called a photon-dressed atomic ensemble), which is described by the Dicke model near the quantum critical point. It is shown that when an extra atom in a pure initial state passes through the cavity, the photon-dressed atomic ensemble will experience a quantum phase transition showing an explicit sudden change in its dynamics characterized by the Loschmidt echo of this quantum critical system. With such dynamic sensitivity, the Dicke model can resemble the cloud chamber for detecting a flying particle by the enhanced trajectory due to the classical phase transition.
资助者: National Natural Science Foundation of China[10935010, 10775048]; National Fundamental Research Program of China[2006CB921205, 2007CB925204]
收录类别: SCI
原文出处: 查看原文
WOS记录号: WOS:000273233800180
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.itp.ac.cn/handle/311006/5197
Appears in Collections:理论物理所1978-2010年知识产出_期刊论文

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Recommended Citation:
Huang, Jin-Feng,Li, Yong,Liao, Jie-Qiao,et al. Dynamic sensitivity of photon-dressed atomic ensemble with quantum criticality[J]. PHYSICAL REVIEW A,2009,80(6):-.
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