| 双电子系统量子纠缠的计算公式 |
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| 引用本文： | 巩龙(龙天). 双电子系统量子纠缠的计算公式[J]. 南京邮电大学学报(自然科学版), 2007, 27(5): 46-49 |
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| 作者姓名： | 巩龙(龙天) |
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| 作者单位： | 南京邮电大学,数理学院,江苏,南京,210003 |
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| 基金项目： | 江苏省高校自然科学基金 , 南京邮电大学校科研和教改项目 |
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| 摘 要： | 把单电子系统的量子纠缠concurrence的计算公式推广到双电子系统,通过详细的推导,得到了任意两个格点间concurrence的计算公式,并且指出可以通过计算双电子系统的格点平均及谱平均concurrence这两个物理量,来研究粒子间的相互作用对量子纠缠的影响,以及利用量子纠缠这一物理量来研究双电子态的局域性问题.
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| 关 键 词： | 量子纠缠 双电子系统 相互作用 局域性 |
| 文章编号： | 1673-5439（2007）05-0046-04 |
| 收稿时间： | 2006-12-09 |
| 修稿时间： | 2007-01-23 |
The Formula of Entanglement Evaluation for Two-Electron Systems |
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| GONG Long-yan. The Formula of Entanglement Evaluation for Two-Electron Systems[J]. JJournal of Nanjing University of Posts and Telecommunications, 2007, 27(5): 46-49 |
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| Authors: | GONG Long-yan |
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| Affiliation: | College of Mathematics and Physics,Nanjing University of Posts and Telecommunications,Nanjing 210003,China |
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| Abstract: | The formula of entanglement evaluation for singleelectron systems is extended to that for two-electron systems.The accurate formula is derived for the concerrence between two arbitrary sites.It is pointed out that the effect of the interaction between particles on extanglement can be studied with the help of the evaluation of the site-averaged concurrence and spectrum-avaraged concurrence,and the localization properties of two-particle states can be studied with the help of entanglement. |
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| Keywords: | Entanglement Two-particle systems Interaction Localization |
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