Mapping the absolute magnetic field and evaluating the quadratic Zeeman-effect-induced systematic error in an atom interferometer gravimeter
Mapping the absolute magnetic field and evaluating the quadratic Zeeman-effect-induced systematic error in an atom interferometer gravimeter
复制标题
DOI：
10.1103/physreva.96.033414
复制
发表时间：
2017-09-20
影响因子：
2.9
通讯作者：
Peters, Achim
中科院分区：
文献类型：
--
作者：
Hu, Qing-Qing;Freier, Christian;Peters, Achim
精确地计算二次塞曼效应引起的系统误差对于研制精度达到μ Gal范围（1 μ Gal = 10（-8）m/s（2）近似于10（-9）g）的原子干涉仪是重要的。本文报道了基于拉曼光谱的磁场测量的实验研究和二次塞曼效应对重力原子干涉仪（GAIN）系统误差的影响。讨论了拉曼持续时间和频率步长对磁场测量的不确定性，给出了矢量光移和张量光移引起的磁场测量偏差，和地图的绝对磁场干涉仪室内的增益与0.72 nT的不确定性和空间分辨率为12.8毫米。我们评估二次塞曼效应-在GAIN中引起的重力测量误差为2.04 μ Gal。本文所给出的方法对于精确地绘制真空中的绝对磁场和减小基于拉曼跃迁的精密测量（如原子干涉重力仪）中二次塞曼效应引起的系统误差具有重要意义。
Precisely evaluating the systematic error induced by the quadratic Zeeman effect is important for developing atom interferometer gravimeters aiming at an accuracy in the mu Gal regime (1 mu Gal = 10(-8)m/s(2) approximate to 10(-9)g). This paper reports on the experimental investigation of Raman spectroscopy-based magnetic field measurements and the evaluation of the systematic error in the gravimetric atom interferometer (GAIN) due to quadratic Zeeman effect. We discuss Raman duration and frequency step-size-dependent magnetic field measurement uncertainty, present vector light shift and tensor light shift induced magnetic field measurement offset, and map the absolute magnetic field inside the interferometer chamber of GAIN with an uncertainty of 0.72 nT and a spatial resolution of 12.8 mm. We evaluate the quadratic Zeeman-effect-induced gravity measurement error in GAIN as 2.04 mu Gal. The methods shown in this paper are important for precisely mapping the absolute magnetic field in vacuum and reducing the quadratic Zeeman-effect-induced systematic error in Raman transition-based precision measurements, such as atomic interferometer gravimeters.