| 普朗克常数精密测量的历史和现状 |
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| 引用本文： | 李玉芬,和穗荣,韦联福.普朗克常数精密测量的历史和现状[J].计量学报,2021,42(11):1534-1542. |
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| 作者姓名： | 李玉芬 和穗荣 韦联福 |
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| 作者单位： | 西南交通大学信息科学与技术学院,四川成都610031;西南交通大学信息科学与技术学院,四川成都610031;东华大学理学院,上海201620 |
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| 基金项目： | 国家自然科学基金(11974290) |
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| 摘 要： | 普朗克常数是量子世界和可观测量子效应的基本标志。作为物理学中基本物理常数之一,它的精确测定对于质量计量的物理基准建立、量子效应精密测量及早期宇宙大爆炸物理特性研究等都有重要意义。经过一百多年来各种间接和直接方法测量,普朗克常数的精确值2019年才被定义。系统地回顾了这一历史进程,并展望普朗克常数精密测量领域的未来发展。
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| 关 键 词： | 计量学 普朗克常数 精密测量 间接测量 直接测量 |
| 收稿时间： | 2020-12-01 |
Precise Measurements of Planck Constant:Histories and Present Situation |
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| LI Yu-fen,HE Sui-rong,WEI Lian-fu.Precise Measurements of Planck Constant:Histories and Present Situation[J].Acta Metrologica Sinica,2021,42(11):1534-1542. |
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| Authors: | LI Yu-fen HE Sui-rong WEI Lian-fu |
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| Affiliation: | 1. School of Information Science and Technology, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
2. School of Science, Donghua University, Shanghai 201620,China |
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| Abstract: | Planck constant plays the central role in quantum theory and quantum effect observations. Its accurate determination is of great significance to establish the physical standard of mass metrology, precisely detect various quantum effects, and also characterize the feature of early big bang universe. Given the precise value of Planck constant was defined in 2019 after more than a hundred years of measurements by various indirect and direct methods, the historical process is reviewed systematically, and the future development of precise measurement of Planck constant is forecasted. |
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| Keywords: | metrology Planck constant precise measurement indirect measurement direct measurement |
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