Entanglement dynamics in Coriolis coupled rovibrational states of formaldehyde
文献类型：期刊论文
| 作者 | Hou, XW; Wan, MF; Ma ZQ(马中骐); Ma, ZQ |
| 刊名 | OPTICS COMMUNICATIONS
 |
| 出版日期 | 2009 |
| 卷号 | 282期号:18页码:3834-3838 |
| 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 |
| 英文摘要 | The entanglement dynamics of two vibrational modes of a polyatomic molecule coupled by Coriolis interaction to overall molecular rotation is studied in terms of two negativities, N(t) and N(s)(t). respectively, defined by the minimum of the eigenvalues and by the sum of the negative eigenvalues of the partial transpose of a density matrix. Various initial states are the products of Dicke states and the products of coherent states of vibrations and rotations. Formaldehyde is taken as an example, and the von Neumann entropy s(t) is simulated for the comparison with both negativities. It is shown that negativity N(s)(t) is positively correlated with entropy s(t), and the correlated behavior between negativity N(t) and entropy s(t) strongly depends on initial states. However, these three indicators of entanglement display a dominantly positive correlation for the coherent states with small or large parameters. In addition, for the latter state two quantities N(t) and s(t) are nearly unchanged for a long time. This time can be further increased by the increasing of vibrational quantum number so that molecular information processing and quantum computing is allowed. These results are useful in quantum information theory. (C) 2009 Elsevier B.V. All rights reserved. |
| 学科主题 | Optics |
| 类目[WOS] | Optics |
| 研究领域[WOS] | Optics |
| 原文出处 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000269103800031 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/239942]  |
| 专题 | 高能物理研究所_理论物理室 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Hou, XW,Wan, MF,Ma ZQ,et al. Entanglement dynamics in Coriolis coupled rovibrational states of formaldehyde[J]. OPTICS COMMUNICATIONS,2009,282(18):3834-3838. |
| APA | Hou, XW,Wan, MF,马中骐,&Ma, ZQ.(2009).Entanglement dynamics in Coriolis coupled rovibrational states of formaldehyde.OPTICS COMMUNICATIONS,282(18),3834-3838. |
| MLA | Hou, XW,et al."Entanglement dynamics in Coriolis coupled rovibrational states of formaldehyde".OPTICS COMMUNICATIONS 282.18(2009):3834-3838. |
入库方式： OAI收割
来源：高能物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。