Magnetic field measurement on ^(87)Rb atomic fountain clock  

作　　者：史春艳 魏荣 周子超 吕德胜 李唐 王育竹 

机构地区：[1]Key Laboratory of Quantum Optics,Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences

出　　处：《Chinese Optics Letters》2010年第6期549-552,共4页中国光学快报（英文版）

基　　金：supported by the National Basic Research Program of China(No.2005CB724506);the National Natural Science Foundation of China(Nos. 10604058 and 10974215);the Open Research Fund of State Key Laboratory of Precision Spectroscope.

摘　　要：An experiment on measuring the magnetic field in Ramsey interaction region of the atomic fountain clock by detecting the Zeeman frequency shift of 87Rb hyperfine transition is presented.By mu-metal shielding and coils compensating,the magnetic fluctuations resulting from asymmetry and instability are less than 10 and 0.025 nT,respectively.The relative frequency uncertainty of atomic fountain clock caused by the magnetic field is less than 5.4×10-16.An experiment on measuring the magnetic field in Ramsey interaction region of the atomic fountain clock by detecting the Zeeman frequency shift of 87Rb hyperfine transition is presented.By mu-metal shielding and coils compensating,the magnetic fluctuations resulting from asymmetry and instability are less than 10 and 0.025 nT,respectively.The relative frequency uncertainty of atomic fountain clock caused by the magnetic field is less than 5.4×10-16.

关 键 词：Atomic beams ATOMS Fountains Magnetic field measurement Magnetic fields Magnetic materials RUBIDIUM 

分 类 号：O562[理学—原子与分子物理]