论文标题
精确测量物质波的Sagnac效应
Accurate measurement of the Sagnac effect for matter waves
论文作者
论文摘要
带有物理区域的路径的旋转干涉仪表现出与该区域成正比的相移以及框架的旋转速率。了解这种所谓的SAGNAC效应的起源在建立相对论的建立中起着关键作用，并推动了精确的光学干涉仪的发展。SagNAC效应的基本重要性的基本重要性是通过在光波范围内实现实现实验的实验，但使用精确的测量来实现其有效性，但我们报告了精确的测试。纤维原子干涉仪的几何面积为11 cm $^2 $和两个敏感的测量轴。我们测量地球旋转引起的相移，并以25 ppm的精度水平找到与理论预测的一致性。除了对基本物理学的重要性之外，我们的工作还开辟了地震学和地球学方面的实际应用。
A rotating interferometer with paths that enclose a physical area exhibits a phase shift proportional to this area and to the rotation rate of the frame. Understanding the origin of this so-called Sagnac effect has played a key role in the establishment of the theory of relativity and has pushed for the development of precision optical interferometers.The fundamental importance of the Sagnac effect motivated the realization of experiments to test its validity for waves beyond optical, but precision measurements remained a challenge.Here we report the accurate test of the Sagnac effect for matter waves, by using a Cesium-atom interferometer featuring a geometrical area of 11 cm$^2$ and two sensitive axes of measurements. We measure the phase shift induced by the Earth's rotation and find agreement with the theoretical prediction at an accuracy level of 25 ppm. Beyond the importance for fundamental physics, our work opens practical applications in seismology and geodesy.
