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Entropy and negativity of Fermi-resonance coupling vibrations in a spectroscopic Hamiltonian
Hou, XW; Wan, MF; Ma ZQ(马中骐); Ma, ZQ
2009
发表期刊PHYSICAL REVIEW A
卷号79期号:2页码:22308
通讯作者[Hou, Xi-Wen] Huazhong Normal Univ, Dept Phys, Wuhan 430079, Peoples R China ; [Wan, Ming-Fang] Wuhan Univ Technol, Sch Nat Sci, Wuhan 430079, Peoples R China ; [Ma, Zhong-Qi] Inst High Energy Phys, Beijing 100049, Peoples R China
文章类型Article
摘要The entanglement dynamics of Fermi resonance coupling vibrations in a spectroscopic Hamiltonian for molecules CHD(3), CHCl(3), and CHF(3) is studied in terms of the von Neumann entropy and negativity with three kinds of initial states that are direct products of coherent states, thermal states, and squeezed states of each mode. It is demonstrated that the increasing rate of entanglement in the early-time evolution is the largest for the squeezed states, while that is the smallest for the coherent states. For small parameters in the coherent and thermal states, entanglement displays a quasiperiodicity with the quasiperiod in CHF(3) being the longest. Furthermore, the dynamical correlation between the von Neumann entropy and negativity shows that positively correlated or anticorrelated behaviors of both measures strongly depend on initial states and molecules. For those states with small parameters, both measures exhibit dominantly positive correlation. These are useful for molecular quantum computing and information processing.
关键词entropy Fermi resonance information theory optical squeezing organic compounds quantum computing quantum entanglement quantum optics
学科领域Optics; Physics
研究领域[WOS]Optics ; Physics ; Optics ; Physics
DOI10.1103/PhysRevA.79.022308
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语种英语
研究领域[WOS]Optics ; Physics ; Optics ; Physics
WOS类目Optics ; Physics, Atomic, Molecular & Chemical
WOS记录号WOS:000263815000053
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被引频次:10[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/240486
专题理论物理室
作者单位中国科学院高能物理研究所
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Hou, XW,Wan, MF,Ma ZQ,et al. Entropy and negativity of Fermi-resonance coupling vibrations in a spectroscopic Hamiltonian[J]. PHYSICAL REVIEW A,2009,79(2):22308.
APA Hou, XW,Wan, MF,马中骐,&Ma, ZQ.(2009).Entropy and negativity of Fermi-resonance coupling vibrations in a spectroscopic Hamiltonian.PHYSICAL REVIEW A,79(2),22308.
MLA Hou, XW,et al."Entropy and negativity of Fermi-resonance coupling vibrations in a spectroscopic Hamiltonian".PHYSICAL REVIEW A 79.2(2009):22308.
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