磁阱中冷原子真空测量的研究进展  

Recent Developments in Magnetic Traps Using Cold-Atom Vacuum Measurements

作　　者：冯村 成永军[1] 吴翔民 董猛[1] 张亚飞 孙雯君[1] FENG Cun;CHENG Yongjun;WU Xiangmin;DONG Meng;ZHANG Yafei;SUN Wenjun(Science and Technology on Vacuum Technology and Physics Laboratory,Lanzhou Institute of Physics,Lanzhou 730000,China)

机构地区：[1]兰州空间技术物理研究所真空技术与物理重点实验室,兰州730000

出　　处：《真空科学与技术学报》2024年第11期929-940,共12页Chinese Journal of Vacuum Science and Technology

基　　金：国家自然科学基金项目(62371214)。

摘　　要：冷原子真空测量是一种超高/极高真空度测量的新技术,理想磁阱中冷原子真空测量可溯源至原子基本性质,能够建立真空原级计量标准。通过不同磁阱磁场强度、磁捕获势能和磁捕获参数的对比分析,对各类磁阱的束缚性能进行总结。调研了国内外在磁阱中冷原子真空测量的研究,综述了实现冷原子原级真空标准的理论参数计算和设备研制实验。从优化和构建磁阱方面对磁阱中的冷原子真空测量进行展望。The cold atom vacuum measurement is a new technique for ultra-high/extreme-high vacuum(UHV/XHV)measurements,which is traceable to the fundamental properties of atoms in an ideal magnetic trap and can establish vacuum primary metrology standards.Firstly,we summarize the binding performance of various types of magnetic traps by comparing and analyzing the magnitude of the magnetic field,magnetic trapping potential,and magnetic trapping parameters of different magnetic traps.Secondly,we investigated the domestic and international research on cold-atom vacuum measurements in magnetic traps.We reviewed the theoretical parameter calculations and equipment development experiments for realizing cold-atom primary vacuum standards.Finally,we provide an outlook on cold atom vacuum measurements in magnetic traps in terms of optimization and construction of magnetic traps.

关 键 词：磁阱 冷原子 真空测量 原级计量标准 超高/极高真空 

分 类 号：O46[理学—电子物理学]