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。
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.
作者
李玉芬
和穗荣
韦联福
LI Yu-fen;HE Sui-rong;WEI Lian-fu(School of Information Science and Technology,Southwest Jiaotong University,Chengdu,Sichuan 610031,China;School of Science,Donghua University,Shanghai 201620,China)
出处
《计量学报》
CSCD
北大核心
2021年第11期1534-1542,共9页
Acta Metrologica Sinica
基金
国家自然科学基金(11974290)。
关键词
计量学
普朗克常数
精密测量
间接测量
直接测量
metrology
Planck constant
precise measurement
indirect measurement
direct measurement
