| 二维量子态的相干值计算 |
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| 引用本文： | 孙柳1,陶元红2,李江鹏1. 二维量子态的相干值计算[J]. 延边大学学报(自然科学版), 2022, 0(2): 107-111 |
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| 作者姓名： | 孙柳1 陶元红2 李江鹏1 |
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| 作者单位： | (1.延边大学 理学院, 吉林 延吉 133002; 2.浙江科技学院 理学院, 杭州 310023) |
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| 摘 要： | 利用单量子比特混合态的Bloch球表示法给出7种常见的相干度量(l1范数相干度量、l(-overp)范数相干度量((-overp)≥2)、 相对熵相干度量、 Tsallis - α相对熵相干度量、 Rényi - α相对熵相干度量、 α - 亲和度相干度量和斜信息相干度量)下二维量子态的相干值解析表达式及其取值范围.该研究结果可为研究单量子比特系统上的不同相干度量的序关系提供参考.
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| 关 键 词： | 量子相干性 相干值 Bloch球表示法 单量子比特态 |
Calculation of quantum coherence for two - dimensional quantum state |
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| SUN Liu1,TAO Yuanhong2,LI Jiangpeng1. Calculation of quantum coherence for two - dimensional quantum state[J]. Journal of Yanbian University (Natural Science), 2022, 0(2): 107-111 |
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| Authors: | SUN Liu1 TAO Yuanhong2 LI Jiangpeng1 |
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| Affiliation: | (1.College of Science, Yanbian University, Yanji 133002, China; 2.College of Science, Zhejiang University of Science and Technology, Hangzhou 310023, China) |
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| Abstract: | Using the Bloch sphere representation of single - qubit mixed states, the analytical expressions and value ranges of coherence values of two - dimensional quantum states under seven common coherence measures are given(l1- norm coherence measure, l(-overp)- norm coherence measure((-overp)≥2), relative entropy coherence measure, Tsallis - α relative entropy coherence, Rényi - α relative entropy coherence, α - affinity coherence measureand skew information coherence measure), the research results can provide a reference for studying the order relationship of different coherence measures in single - qubit system. |
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| Keywords: | quantum coherence coherence value Bloch sphere representation single - qubit state |
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