论文标题
通过使用超导效应，对局部磁场的敏感检测对原子干涉法的变化
Sensitive detection of local magnetic field changes with atomic interferometry by using superconducting Meissner effects
论文作者
论文摘要
对磁场的敏感检测是计量学的开放问题之一。在这里，我们提出了一个马赫德原子干涉仪，以敏感地检测到非常弱的局部磁场，由于梅斯纳效应，该磁场被超导体（作为“测试磁铁”）驱逐出来。超导体附近的诱导磁场梯度提供了干扰法中原子运动的中心置加速度，因此可以使用原子干扰物检测。给定原子的重力加速度以$ 10^{ - 12} $ g的精度测量，被驱除的本地场的敏感性可以达到$ 10^{ - 14} $ t。
Sensitive detection of magnetic field is one of the open problem in metrology. Here, we propose an Mach-Zehnder atomic interferometry to sensitively detect the very weak local magnetic field, which is expelled by the superconductor (as the "testing magnet") due to the Meissner effect. The induced magnetic field gradient near the superconductor provides a centripetal acceleration of the atomic motion in the interferometry and thus can be detected by using the atomic interferences. Given gravity acceleration of the atoms have been measured at the accuracy of $10^{-12}$ g, the measured sensitivity of the expelled local field could reach $10^{-14}$ T.
