| 二粒子纠缠态受控传递的最佳量子通道 |
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| 引用本文： | 郑菊花,陶元红,张寿.二粒子纠缠态受控传递的最佳量子通道[J].量子光学学报,2012,18(2):120-127. |
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| 作者姓名： | 郑菊花 陶元红 张寿 |
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| 作者单位： | 1. 延边大学理学院 数学系
2. 延边大学理学院物理系,吉林延吉,133002 |
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| 基金项目： | 国家自然科学基金，吉林省自然科学基金 |
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| 摘 要： | 本文研究了如何在二粒子纠缠态的量子受控传递中选择最佳量子通道的问题。分别利用四粒子GHZ态和四粒子特殊"反关联GHZ态"作为量子通道,本文提出了二粒子反关联纠缠态的量子受控传递的两个方案。通过对比两个方案下接受者最后采取的幺正操作的具体矩阵形式,分析了待传量子纠缠态与量子通道的关系,指出了四粒子GHZ态和四粒子特殊"反关联GHZ态"分别是二粒子正关联和反关联纠缠态各自隐形传递应该选择的最佳的量子通道。
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| 关 键 词： | 量子信道 量子受控传递 反关联纠缠态 正关联纠缠态 幺正变换 |
| 收稿时间： | 2011/12/15 |
Optimal Quantum Channel in Controlled Quantum Teleportation of Two-particle Entangled State |
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| ZHENG Ju-hua
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TAO Yuan-hong
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ZHANG Shou.Optimal Quantum Channel in Controlled Quantum Teleportation of Two-particle Entangled State[J].Acta Sinica Quantum Optica,2012,18(2):120-127. |
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| Authors: | ZHENG Ju-hua TAO Yuan-hong ZHANG Shou |
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| Institution: | 1.Department of Mathematics;2.Department of Physics,College of Sciences,Yanbian University,Yanji,Jilin 133002,China) |
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| Abstract: | How to choose the best quantum channel in controlled quantum teleportation of a two-particle entangled state is discussed in this paper. Using four-particle GHZ state and fourparticle special “anti-correlating GHZ state”as quantum channel respectively, two controlled quantum teleportation schemes of anti-correlating entangled states are presented. The detailed matrix form of unitary transformations adopted by the receiver are compared in the two schemes, and the relationship between the quantum entangled state and quantum channel is analyzed. Then the best quantum channels of correlating entangled state and anti-correlating entangled state are proposed, which are four-particle GHZ state and four-particle special “anti-correlating GHZ state”respectively. |
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| Keywords: | quantum channel controlled quantum teleportation anti-correlating entangled state correlating entangled state unitary transformation |
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