Inertial sensing with classical atomic beams
Inertial sensing with classical atomic beams
复制标题
DOI：
10.1103/physreva.54.3165
复制
发表时间：
1996-10-01
影响因子：
2.9
通讯作者：
Zeilinger, A
中科院分区：
文献类型：
--
作者：
Oberthaler, MK;Bernet, S;Zeilinger, A
介绍了一种不同的高精度测量旋转、加速度和重力的方法。我们的莫尔偏折仪是基于原子（或分子）光束通过一组三个相同的光栅的几何传播。光栅相对于原子束的加速运动导致总透射强度的变化。该装置是非色散的，即，可以使用具有宽能量分布且没有准直的原子。此外，旋转和线性（重力）加速度可以很容易地区分和测量同时进行。在某种意义上，莫尔偏折仪代表了量子力学物质波干涉仪的经典模拟。在测试系统上的实验结果表明，它对旋转和重力的灵敏度已经在商用惯性传感器的范围内。它可以直接增加数量级。
A different approach to high-precision measurement of rotation, acceleration, and gravitation is presented. Our Moire deflectometer is based on geometric propagation of an atomic (or molecular) beam through a set of three identical gratings. Accelerated movements of the gratings with respect to the atomic beam result in a change of the total transmitted intensity. The device is nondispersive, i.e., atoms with a broad energy distribution and without collimation can be used. Furthermore, rotational and linear (gravitational) acceleration can easily be distinguished and measured simultaneously. In a certain sense the Moire deflectometer represents the classical analog to a quantum-mechanical matter-wave interferometer. Experimental results on a test system demonstrate that its sensitivity to rotation and gravitation is already in the range of commercially used inertial sensors. It can be increased straightforwardly by orders of magnitude.