| 外场驱动的两囚禁离子的纠缠突然消失的研究(英文) |
| |
| 引用本文： | 王中结,张侃. 外场驱动的两囚禁离子的纠缠突然消失的研究(英文)[J]. 原子与分子物理学报, 2010, 27(3): 497-502. DOI: 10.3969/j.issn.1000-0364.2010.03.019 |
| |
| 作者姓名： | 王中结 张侃 |
| |
| 作者单位： | 安徽师范大学物理与电子信息学院,芜湖,241000 |
| |
| 基金项目： | 安徽省自然科学基金(090412060)和安徽省教育厅自然科学基金(KJ2008A029) |
| |
| 摘 要： | 研究了两囚禁离子与一束激光场相互作用模型.通过幺正变换,这个系统被变换成Tavis—Cum-mings模型.通过计算共生纠缠度,分析了这个系统中两离子的纠缠动力学.与Tavis-Cummings模型不同,本文中两离子的纠缠演化经历周期性的消失和恢复.纠缠消失和恢复的周期与系统的初态有关.
|
| 关 键 词： | 囚禁离子，纠缠突然消失，共生纠缠度 |
| 收稿时间： | 2009-06-03 |
| 修稿时间： | 2009-06-19 |
Study on Entanglement Sudden Death of Two Trapped Ions Driven by External Field |
| |
| WANG Zhong-Jie,ZHANG Kan. Study on Entanglement Sudden Death of Two Trapped Ions Driven by External Field[J]. Journal of Atomic and Molecular Physics, 2010, 27(3): 497-502. DOI: 10.3969/j.issn.1000-0364.2010.03.019 |
| |
| Authors: | WANG Zhong-Jie ZHANG Kan |
| |
| Affiliation: | College of Physics and Electric Information Anhui Normal University, |
| |
| Abstract: | The model for interaction of two trapped ions in a trap with a laser beam have been studied.By applying unitary transformations, the system can be transformed into the Tavis-Cummings model.With computation of the concurrence, the entanglement dynamics of two trapped ions in this system has been investigated. Unlike that in Tavis - Cummings model, the entanglement of two ions in our model undergoes periodic death and revivals. The periodic of entanglement death and revivals is dependent of the initial state of system. |
| |
| Keywords: | trapped ion entanglement sudden death concurrence |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《原子与分子物理学报》浏览原始摘要信息 |
|
点击此处可从《原子与分子物理学报》下载免费的PDF全文 |
