Detection of applied and ambient forces with a matter-wave magnetic gradiometer
Detection of applied and ambient forces with a matter-wave magnetic gradiometer
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使用物质波磁梯度仪检测施加力和环境力
DOI：
10.1103/physreva.96.053622
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发表时间：
2017
影响因子：
2.9
通讯作者：
P. Griffin
中科院分区：
文献类型：
--
作者：
B. I. Robertson;Andrew R. MacKellar;James Halket;A. Gribbon;J. Pritchard;A. Arnold;E. Riis;P. Griffin
利用玻色-爱因斯坦凝聚体的原子干涉仪测量磁场梯度。复合光脉冲被用来构建一个空间对称的马赫-曾德尔几何。通过使用偏置干涉仪，我们证明了在我们的系统中测量小残余力的能力，并区分磁效应和惯性效应。这些是15\ifmmode\pm\else\textpm\fi {}2$ mG/cm的剩余环境磁场梯度和0.08\ifmmode\pm\else\textpm\fi {}0.02$ m/${\mathrm{s}}^{2}$的惯性加速度。该方法在精密测量设备的标定和减小系统误差方面具有重要的应用价值。
An atom interferometer using a Bose--Einstein condensate of $^{87}\mathrm{Rb}$ atoms is utilized for the measurement of magnetic-field gradients. Composite optical pulses are used to construct a spatially symmetric Mach--Zehnder geometry. By using a biased interferometer we demonstrate the ability to measure small residual forces in our system and discriminate between magnetic and inertial effects. These are a residual ambient magnetic-field gradient of $15\ifmmode\pm\else\textpm\fi{}2$ mG/cm and an inertial acceleration of $0.08\ifmmode\pm\else\textpm\fi{}0.02$ m/${\mathrm{s}}^{2}$. Our method has important applications in the calibration of precision measurement devices and the reduction of systematic errors.