| 不对称耦合对量子CCN门精度的影响 |
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| 引用本文： | 施翠华,吴银忠.不对称耦合对量子CCN门精度的影响[J].常熟理工学院学报,2009,23(2):40-44. |
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| 作者姓名： | 施翠华 吴银忠 |
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| 作者单位： | 1. 苏州大学,物理与科技学院,江苏,苏州,215006
2. 常熟理工学院,江苏省新型功能材料省重点建设实验室,江苏,常熟,215500 |
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| 基金项目： | 江苏省教育厅自然科学基金 |
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| 摘 要： | 在一维原子自旋链系统中，引入了不对称的自旋耦合，研究了不对称耦合对量子控制非门精度的影响．通过数值模拟发现，只有在最近邻自旋耦合涨落频率和涨落幅度取某些特定值时，才能保证CCN门的精度．
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| 关 键 词： | CCN量子门 不对称耦合 保真度 |
Effects of Non-uniform Interactions on the Fidelity of a Quantum Controlled-controlled-not gate |
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| SHI Cui-Hua,WU Yin-Zhong.Effects of Non-uniform Interactions on the Fidelity of a Quantum Controlled-controlled-not gate[J].Journal of Changshu Institute of Technology,2009,23(2):40-44. |
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| Authors: | SHI Cui-Hua WU Yin-Zhong |
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| Institution: | 1.School of Physical Science and Technology;Soochow University;Suzhou 215006;China;2.Jiangsu Laboratory of Advanced Functional Materials;Changshu Institute of Technology;Changshu 215500;China |
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| Abstract: | We present a study of the effects of the non-uniform nearest-neighbor interaction on the fidelity of a quantum controlled-controlled-not gate in a chain of three nuclear spins.It is found that the fidelity of the quantum controlled-controlled-not gate can be guaranteed for selected frequencies and amplitudes of the fluctuation of the nearest coupling. |
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| Keywords: | quantum controlled-controlled-not gate non-uniform coupling fidelity |
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