标题： 多轴原子干涉仪陀螺仪与单一原子源 显示英文标题

标题： Multi-axis atom interferometer gyroscope with a single source of atoms

摘要： 使用点源原子干涉技术，我们表征了基于玻璃真空腔中单个冷原子源的自由空间拉曼探测的多轴陀螺仪的灵敏度。 该仪器同时测量拉曼激光束方向的加速度和该方向垂直平面内的旋转矢量分量。 我们表征了旋转矢量测量的大小和方向的灵敏度，分别为0.033$^{\circ}/\mathrm{s}$和0.27$^{\circ}$，平均时间为一秒。 通过增加拉曼探测时间，使冷原子云进一步扩展，校正初始云形状的波动，并减少技术噪声的来源，可以提高灵敏度。 PSI技术在平面上测量旋转矢量的独特能力可能允许原子干涉仪的应用，例如跟踪旋转矢量的进动和陀螺罗盘。 显示英文摘要

摘要： Using the technique of point source atom interferometry, we characterize the sensitivity of a multi-axis gyroscope based on free-space Raman interrogation of a single source of cold atoms in a glass vacuum cell. The instrument simultaneously measures the acceleration in the direction of the Raman laser beams and the component of the rotation vector in the plane perpendicular to that direction. We characterize the sensitivities for the magnitude and direction of the rotation vector measurement, which are 0.033 $^{\circ}/\mathrm{s}$ and 0.27 $^{\circ}$ with one second averaging time, respectively. The sensitivity could be improved by increasing the Raman interrogation time, allowing the cold-atom cloud to expand further, correcting the fluctuations in the initial cloud shape, and reducing sources of technical noise. The unique ability of the PSI technique to measure the rotation vector in a plane may permit applications of atom interferometry such as tracking the precession of a rotation vector and gyrocompassing.