| Entanglement Dynamics in Typical Local- and Normal-Mode Molecules |
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| 作者姓名： | 候喜文 万明芳 马中骐 |
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| 作者单位： | [1]Department of Physics, Huazhong Normal University, Wuhan 430079 [2]School of Natural Science, Wuhan University of Technology, Wuhan 430079 [3]Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918（4）, Beijing 100049 |
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| 基金项目： | Supported by the National Natural Science Foundation of China Grant Nos 10675050 and 10475082. |
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| 摘 要： | The entanglement dynamics of two stretching vibrations in theoretically typical local- and normal-mode molecules and realistic molecules H2 O and SO2 in an algebraic model is studied in terms of the reduced-density linear entropy with initial entangled states taken to be two-mode squeezed vacuum states. It is shown that the behaviour of the entropy in theoretically typical molecules appears to be more regular than that in realistic ones, and that the entropy becomes irregular as the amplitude of two-mode squeezed vacuum states increases. For initial states with a small amplitude, it is demonstrated that the periodicity and the “classical” beat phenomenon of the entropy occur with the beat in theoretically typical molecules being more regular than that in realistic molecules H2O and SO2.
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| 关 键 词： | 缠结分子网 代数模式 线性熵 纠结状态 |
| 修稿时间： | 2006-12-21 |
Entanglement Dynamics in Typical Local- and Normal-Mode Molecules |
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| HOU Xi-Wen, WAN Ming-Fang, MA Zhong-Qi , Beijing.Entanglement Dynamics in Typical Local- and Normal-Mode Molecules[J].Chinese Physics Letters,2007,24(6):1549-1552. |
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| Authors: | HOU Xi-Wen WAN Ming-Fang MA Zhong-Qi Beijing |
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| Institution: | 1 Department of Physics, Huazhong Normal University, Wuhan 430079 2 School of Natural Science, Wuhan University of Technology, Wuhan 430079 3Institute of High Energy Physics, Chinese Academy of Sciences, PO Box 918(4 |
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