| Discussion on Maximally Entangled States of Two Coupled Two-Level Particles by Coherent State Approximation |
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| 作者姓名： | 张正阶 汪克林 |
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| 作者单位： | [1]College of Information Engineering, Chengdu University of Technology, Chengdu 610059 [2]College of Science, Southwest University of Science and Technology, Mianyang 621002 [3]Department of Modern Physics, University of Science and Technology of China, Hefei 230026 |
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| 基金项目： | Supported by the Researching Foundation of Chengdu University of Technology No 2005 YG 09. The authors wish to express our thanks to Professor Zheng-Gang Zhang and Dr Tao Liu for helpful discussions. |
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| 摘 要： | We analyse the best condition for generating the maximally entangled states of the system containing two coupled two-level particles by the coherent approximation method beyond rotating wave approximation. It is found that the maximally entangled states are obtained when the detuning v and the strength Ω of driving laser satisfy the condition v/Ω= 2.5. The maximum average probability of entangled state pamax（v, Ω） has the best stability relying on v and Ω when vu ≈2Ω.
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| 关 键 词： | 最大混乱态 双耦合双层粒子 连贯态 近似值 量子体 |
| 收稿时间： | 2005-12-28 |
| 修稿时间： | 2005-12-28 |
Discussion on Maximally Entangled States of Two Coupled Two-Level Particles by Coherent State Approximation |
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| ZHANG Zheng-Jie,WANG Ke-Lin.Discussion on Maximally Entangled States of Two Coupled Two-Level Particles by Coherent State Approximation[J].Chinese Physics Letters,2006,23(6):1369-1371. |
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| Authors: | ZHANG Zheng-Jie WANG Ke-Lin |
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| Institution: | College of Information Engineering, Chengdu University of Technology, Chengdu 610059
College of Science, Southwest University of Science and Technology, Mianyang 621002
Department of Modern Physics, University of Science and Technology of China, Hefei 230026 |
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| Abstract: | |
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| Keywords: | 03 65 -w 03 65 Ud 03 67 Mn |
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