ITP OpenIR  > 理论物理所1978-2010年知识产出
Quantum criticality in a generalized Dicke model
Li, Yong; Wang, Z. D.; Sun, C. P.; Li, Y , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
2006
发表期刊PHYSICAL REVIEW A
ISSN1050-2947
卷号74期号:2页码:-
摘要We employ a generalized Dicke model to study theoretically the quantum criticality of an extended two-level atomic ensemble interacting with a single-mode quantized light field. Effective Hamiltonians are derived and diagonalized to investigate numerically their eigenfrequencies for different quantum phases in the system. Based on the analysis of the eigenfrequencies, an intriguing quantum-phase transition from a normal phase to a superradiant phase is revealed clearly, which is quite different from that observed with a standard Dicke model.
部门归属Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China; Chinese Acad Sci, Interdisciplinary Ctr Theoret Studies, Beijing 100080, Peoples R China; Univ Hong Kong, Dept Phys, Hong Kong, Hong Kong, Peoples R China; Univ Hong Kong, Ctr Theoret & Comput Phys, Hong Kong, Hong Kong, Peoples R China
关键词Phase-transitions Matter
学科领域Physics
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收录类别SCI
WOS记录号WOS:000240238300136
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被引频次:20[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.itp.ac.cn/handle/311006/5930
专题理论物理所1978-2010年知识产出
通讯作者Li, Y , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China
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GB/T 7714
Li, Yong,Wang, Z. D.,Sun, C. P.,et al. Quantum criticality in a generalized Dicke model[J]. PHYSICAL REVIEW A,2006,74(2):-.
APA Li, Yong,Wang, Z. D.,Sun, C. P.,&Li, Y , Chinese Acad Sci, Inst Theoret Phys, Beijing 100080, Peoples R China.(2006).Quantum criticality in a generalized Dicke model.PHYSICAL REVIEW A,74(2),-.
MLA Li, Yong,et al."Quantum criticality in a generalized Dicke model".PHYSICAL REVIEW A 74.2(2006):-.
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