论文标题
实地增强原子干涉法的局限性
Limitations for field-enhanced atom interferometry
论文作者
论文摘要
我们讨论了通过使用外部场梯度增加其开放区域来提高光学干涉设备灵敏度的可能性，该梯度在干涉仪的两个臂上的作用不同。使用联合电场和磁场的使用取消了降低干涉仪的非线性项。使用良好的定义（通常使用n $ \ sim $ 20 rydberg），一个磁场，几乎没有特斯拉的磁场和$ \ sim $ \ sim $ 10V/cm 2的磁场。但是，这仅允许按数十$ $ $ $ $ s的订单达到仅1或2级的相互作用的时间，仅能达到1或2级的准确度，该准确度仅超过标准的轻纤维级别，即高于标准的光线级别。此外，对田地和状态和3D轨迹的控制将严重的限制限制在可达的精度上。因此，这个想法不适合精确测量，但最终可能用于反物质研究中的重力或中立性。
We discuss the possibility to enhance the sensitivity of optical interferometric devices by increasing its open area using an external field gradient that act differently on the two arms of the interfer-ometers. The use of combined electric and magnetic field cancel non linear terms that dephases the interferometer. This is possible using well defined (typically with n $\sim$ 20 Rydberg) states, a magnetic field of few Tesla and an electric field gradient of $\sim$ 10V/cm 2. However this allows only for interaction times on the order of tens of $μ$s leading a reachable accuracy of only 1 or 2 order of magnitude higher than standard light-pulse atom interferometers. Furthermore, the control of fields and states and 3D trajectories puts severe limits to the reachable accuracy. This idea is therefore not suitable for precision measurement but might eventually be used for gravity or neutrality in antimatter studies.
