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Dynamics of Tripartite Entanglement and Intramolecular Energy in Symmetric Trimer Molecule
Di Yi,Xing-lin Jian,Xi-wen Hou
Author NameAffiliationE-mail
Di Yi Department of Physics, Huazhong Normal University, Wuhan 430079, China  
Xing-lin Jian 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 tripartite entanglement and intramolecular energy for one harmonic-and two anharmonic-vibrational modes in a symmetric trimer molecule is studied for various ini-tial states, where the entanglement is quantified in terms of concurrence and the interacting energy among three modes is calculated to establish a link between entanglement and en-ergy. It is shown that the concurrence and the interacting energy behave dominantly positive correlation for the localized state in the anharmonic-vibrational mode, while they are domi-nantly anti-correlated for the localized state in the harmonic-vibrational mode. The relation between bipartite entanglement and the energy in a subsystem is discussed as well. Those are useful for quantum computing and quantum information in high dimensional states prepared in polyatomic molecules.
Key words:  Vibrational analyses  Tripartite entanglement  Quantum energy
FundProject:This work was supported by the National Natural Science Foundation of China (No.11174099).
用对称的三聚物分子研究三组分纠缠和分子内能量动力学
易迪,蹇兴林,侯喜文
摘要:
为了建立纠缠与能量的联系, 研究了对称三聚物分子的不同初始态的量子纠缠动力学, 用共生度描述三组分纠缠,计算了三个振动模之间的相互作用能. 结果表明非简谐振动局域态的共生度与相互作用能是正关联占优,而简谐振动局域态的共生度与相互作用能是反关联占优.
关键词:  振动分析  三组分纠缠  能量
DOI:10.1063/1674-0068/29/cjcp1507148
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