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Entanglement and Energy for Vibrationally Localized States in Molecule CS2
Zi-xin Yang,Xing Shen,Xi-wen Hou*
Author NameAffiliationE-mail
Zi-xin Yang Department of Physics, Huazhong Normal University, Wuhan 430079, China  
Xing Shen Department of Physics, Huazhong Normal University, Wuhan 430079, China  
Xi-wen Hou* Department of Physics, Huazhong Normal University, Wuhan 430079, China xwhou@phy.ccnu.edu.cn 
Abstract:
The dynamics of quantum entanglement described by the von Neumann entropy is studied for the localized states of Fermi-resonance coupling vibrations in molecule CS2, where the interacting energy between the stretching and the bending modes is considered to establish a connection between entanglement and energy. It is shown that entanglement reveals dominant anti-correlation with the interacting energy for the stretch-localized state, while that exhibits dominantly positive correlation for the bend-localized state. The entanglement and the energy for the dislocalized states are discussed as well. Those are useful for molecular quantum computing and quantum information in high dimensional states.
Key words:  Entanglement, Quantum entropy, Vibrational analysis
FundProject:
用CS2分子研究振动局域态的纠缠和能量
杨紫新,沈星,侯喜文*
摘要:
研究CS2费米共振耦合振动局域态的Neumann纠缠熵动力学, 并研究伸缩与弯曲振动的相互作用能量, 目的是建立纠缠与能量的联系. 结果表明伸缩振动局域态的纠缠与能量是反关联更明显, 而弯曲振动局域态的纠缠与能量是正关联更明显. 还讨论了非局域态的纠缠与能量的关系.
关键词:  纠缠,量子熵,振动分析
DOI:10.1063/1674-0068/28/cjcp1503044
分类号: