论文标题
De-Broglie波长增强了不同超细状态下原子的弱等效原理测试
de-Broglie Wavelength Enhanced Weak Equivalence Principle Test for Atoms in Different Hyperfine States
论文作者
论文摘要
我们报告了一个相关的弱等效原理（WEP）测试，该测试在单个原子干涉仪中寻找可能的WEP违规信号。使用地面超精细状态$ \ left | f = 1 \右\ rangle $和$ \ weft | f = 2 \ 2 \ rang \ rangle $ of $^{87} $ rb原子同时扫描在拉曼·马赫·兹汉德（Raman Mach-Zehnder）干扰器（mzi）中的不同路径上的不同路径上，这是两次的差异，以置于两个范围的差异。 MZI，贡献WEP测试信号。可以通过逆转拉曼激光的有效波矢量的方向来抑制方向依赖性障碍来提取测试信号。更重要的是，可以利用冷原子的脱骨波长来增强我们方案中的测试信号，这有助于改善不同超精美状态中的WEP原子的上限至$ 2.9 \ times10^{ - 11} $，比以前的记录低一个数量级。
We report a hyperfine-states related weak equivalence principle (WEP) test which searches for possible WEP violation signal in single atom interferometer. With the ground hyperfine states $\left|F=1\right\rangle$ and $\left|F=2\right\rangle$ of $^{87}$Rb atoms simultaneously scanned over different paths in a Raman Mach-Zehnder interferometer (MZI), the difference of the free fall accelerations for the atom in the two hyperfine states is encoded into the phase shift of the MZI, contributing a WEP test signal. The test signal can be extracted out by reversing the direction of the effective wave vector of the Raman laser to suppress direction-dependent disturbances. More importantly, de-Broglie wavelength of cold atoms can be utilized to enhance the test signal in our scheme, which helps to improve the upper bound of the WEP test for atoms in different hyperfine states to $2.9\times10^{-11}$, about one order of magnitude lower than the previous record.
