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提出了一种通过改变激光脉冲序列来提高三能级原子重力仪测量精度的方法.利用提出的描写原子运动的3×3阶矩阵方法,分析了三能级原子与双色光场的正交相互作用,计算了原子干涉仪中的相位差,得到了原子重力仪的相位差与重力加速度的关系.发现通过选择合适的光脉冲序列,可以提高三能级原子重力仪的精度.
A new method to improve the measurement accuracy of three-level atomic gravimeter by changing the laser pulse sequence is proposed. By using the 3 × 3 matrix method that describes the atomic motion, the orthogonal interaction between the three-level atom and the two- The phase difference in the atomic interferometer is calculated and the relationship between the phase difference of the atomic gravimeter and the gravitational acceleration is obtained. It is found that the accuracy of the three-level atomic gravimeter can be improved by selecting the appropriate optical pulse sequence.