| 一种应用于量子数据压缩的幺正变换生成方法 |
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| 引用本文： | 梁彦霞,聂敏.一种应用于量子数据压缩的幺正变换生成方法[J].物理学报,2013,62(20):200305-200305. |
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| 作者姓名： | 梁彦霞 聂敏 |
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| 作者单位： | 西安邮电大学通信与信息工程学院, 西安 710121 |
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| 基金项目： | 国家自然科学基金，国家科技重大专项，陕西省教育厅科研计划专项(批准号:11JK1016)资助的课题.*Project supported by the National Natural Science Foundation of China，the National Science and Technology Major Project of the Ministry of Science and Technology of China，the Special Scientific Research Fundation of the Education Department of Shaanxi Province |
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| 摘 要： | 提出了一种两类正交基矢按照特定要求相互转换的幺正变换生成方法. 特定要求为第一类基矢中特定的四种典型基矢经幺正变换后, 第三个量子比特特定为|0>, 而四种非典型基矢经幺正变换后, 第三个量子比特为|1>. 将该幺正变换应用于量子数据压缩, 准确度达到0.942. 该方法的提出为量子压缩和解压缩的实现提供了基础, 对于其他要求特定对应关系的幺正变换的生成具有借鉴意义.
关键词：
幺正变换
正交基矢
特定要求
量子压缩
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| 关 键 词： | 幺正变换 正交基矢 特定要求 量子压缩 |
| 收稿时间： | 2013-06-05 |
A generation algorithm of unitary transformation applied in quantum data compression |
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| Liang Yan-Xia
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Nie Min.A generation algorithm of unitary transformation applied in quantum data compression[J].Acta Physica Sinica,2013,62(20):200305-200305. |
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| Authors: | Liang Yan-Xia Nie Min |
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| Abstract: | An algorithm to generate unitary transformation (UT) of two orthogonal base kets is proposed in this paper. Certain requirements that UT must meet are as follows: four typical base kets in the first category can be transformed into states with the last qubit |0>, and the other four atypical base kets can be transformed into states with the last qubit |1>. This UT is applied to quantum data compression, with a result that the fidelity of the compression is 0.942. This method provides an important basis for realizing quantum compression and decompression. And it can be an important reference of other UT generation method which must fulfill some requirements.
Keywords：
unitary transformation
orthogonal base ket
certain requirement
quantum compression |
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| Keywords: | unitary transformation orthogonal base ket certain requirement quantum compression |
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