| 量子系统中纯态和混合态量子芝诺效应研究 |
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| 引用本文： | 孙权海,潘国柱,吴诗芬,李凌峰.量子系统中纯态和混合态量子芝诺效应研究[J].淮北煤炭师范学院学报(自然科学版),2014(3):13-15. |
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| 作者姓名： | 孙权海 潘国柱 吴诗芬 李凌峰 |
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| 作者单位： | 1. 安徽三联学院 基础实验教学中心,安徽 合肥,230601
2. 皖西学院 材料与化工学院,安徽 六安,237012 |
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| 基金项目： | 安徽三联学院质量工程示范实验实训中心(13zlgc041)；安徽三联学院自然科学基金资助项目(2013Z010)；六安市定向委托皖西学院市级研究项目 |
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| 摘 要： | 当不稳定量子系统被频繁地测量时,此系统的状态保持不变,量子芝诺效应就会发生.现实存在的量子系统由于与环境相耦合而不可避免地处于混合态.然而,人们对量子芝诺效应的研究基本上只针对纯态量子系统.故研究量子系统中混合态量子芝诺效应将更加具有实际意义.可以证明,量子系统中纯态和混合态均存在量子芝诺效应.
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| 关 键 词： | 量子芝诺效应 投影测量 混合态 纯态 存活概率 |
Study on Quantum Zeno Effect with Pure States and Mixed States in Quantum Systems |
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| SUN Quan-hai,PAN Guo-zhu,WU Shi-fen,LI Lin-feng.Study on Quantum Zeno Effect with Pure States and Mixed States in Quantum Systems[J].Journal of Huaibei Coal Industry Teachers College(Natural Science edition),2014(3):13-15. |
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| Authors: | SUN Quan-hai PAN Guo-zhu WU Shi-fen LI Lin-feng |
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| Institution: | SUN Quan-hai, PAN Guo-zhu, WU Shi-fen, LI Lin-feng ( 1.Foundation Experiment Teaching Center,Anhui Sanlian University, 230031, Hefei ,Anhui, China ; 2.College of Materials and Chemical Engineering, West Anhui University, 237012, Lu＇an ,Anhui, China) |
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| Abstract: | When unstable quantum systems are frequently measured,the initial states of the systems will re-main unchanged,and quantum Zeno effect will occur. Due to the interaction with its surrounding environ-ment,the realistic quantum systems are all in mixed state inevitably. Most of the studies on quantum Zeno ef-fect only focused on quantum systems with pure initial states. Therefore,the investigations on quantum Zeno effect with mixed initial states in unstable quantum systems are more desirable and of practical significance. We can prove the existence of quantum Zeno effect with pure states and mixed states in quantum systems. |
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| Keywords: | quantum Zeno effect projection measurement mixed states pure states survival probability |
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