| 用基本两位量子逻辑门实现N位量子逻辑门的研究 |
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| 引用本文： | 吕洪君,郭俊旺,彭斐,吴天昊,解光军.用基本两位量子逻辑门实现N位量子逻辑门的研究[J].量子电子学报,2010,27(1):26-30. |
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| 作者姓名： | 吕洪君 郭俊旺 彭斐 吴天昊 解光军 |
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| 作者单位： | 合肥工业大学电子科学与应用物理学院， 安徽 合肥 230009 |
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| 基金项目： | 安徽省自然科学基金，安徽省人才开发基金 |
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| 摘 要： | 量子电路是实现量子态幺正演化的手段，一位和两位门是构成量子电路的基础。Barenco 用基本的两位量子逻辑门实现n位量子逻辑门功能，张登玉在Barenco的工作基础上对用基本的两位量子逻辑门实现n位量子逻辑门功能进行了改进。通过对Barenco方案和张登玉方案的分析和研究，提出了一个用基本的两位量子逻辑门实现n位量子逻辑门功能的新方案，该方案结构更简单，且所用的两位门更易于实现，同时指出和改正了张文的不太准确的结论。
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| 关 键 词： | 量子电路 量子逻辑门 幺正变换 Toffoli门 |
n-bit quantum gate accomplished by two-bit quantum gates |
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| L Hong-jun,GUO Jun-wang,PENG Fei,WU Tian-hao,XIE Guang-jun.n-bit quantum gate accomplished by two-bit quantum gates[J].Chinese Journal of Quantum Electronics,2010,27(1):26-30. |
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| Authors: | L Hong-jun GUO Jun-wang PENG Fei WU Tian-hao XIE Guang-jun |
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| Affiliation: | School of Electronic Science & Applied Physics, Hefei University of Technology, Hefei 230009, China |
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| Abstract: | Quantum circuits are the tools of realizing the unitary evolution of quantum state, and they are mainly made up of one-bit and two-bit quantum gates. Barenco proposed a method for constructing n-bit quantum gate by using basic two-bit quantum gates in 1995. Zhang proposed the improved method for constructing n-bit quantum gate by using basic two-bit quantum gates in 2001. The method for constructing n-bit quantum gate by using basic two-bit quantum gates is proposed by improving the two methods mentioned. The scheme is more simple and easier to implement and the incorrect conclusion by Zhang is amended. |
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| Keywords: | quantum information quantum logic circuit quantum logical gate unitary transformation Toffoli gate |
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