论文标题
激发状态landég因子的精确度量和剖腹产的直流d $ _ {2} $ line
Precision Measurement of the Excited State Landé g-factor and Diamagnetic Shift of the Cesium D$_{2}$ Line
论文作者
论文摘要
我们已经在3 t和7 t磁场的剖宫产d $ _ {2} $线上进行了饱和吸收光谱。通过极端动量的边带光谱法，我们测量了过渡的线性磁频移为$γ_1= 13.994 \：301（11）$ GHz/t。这对应于优于1 ppm精度的光学磁场测量值。从这个值中，我们可以计算出精细的结构landég-factor $ g_j \ left（6^2p_ {3/2} \ right）= 1.334 \：087 \：49（52）$。这与以前的最佳测量相一致，并将精度提高了两个以上的数量级。我们还首次测量了二次直流偏移为$γ_2= 0.4644（35）\：\ mathrm {MHz/t^2} $。我们的工作使用原子剖宫产开辟了准确的高场光学磁力测定法。这些高精度测量值还可以测试晚期原子结构模型，因为我们的结果与Russel-Saunders耦合值不符，并且分别通过31和7标准偏差。
We have performed saturated absorption spectroscopy on the cesium D$_{2}$ line in 3 T and 7 T magnetic fields. By means of sideband spectroscopy on the extreme angular momentum states we have measured the linear magnetic frequency shift of the transition to be $γ_1 = 13.994\:301(11)$ GHz/T. This corresponds to an optical magnetic field measurement of better than 1 ppm accuracy. From this value we can calculate the fine structure Landé g-factor $g_J\left(6^2P_{3/2}\right) = 1.334\:087\:49(52)$. This is consistent with the previous best measurement, and improves the accuracy by more than two orders of magnitude. We have also measured, for the first time ever, the quadratic diamagnetic shift as $γ_2 = 0.4644(35)\:\mathrm{MHz/T^2}$. Our work opens up the field of accurate high field optical magnetometry using atomic cesium. These high accuracy measurements also allow for testing of advanced atomic structure models, as our results are incompatible with the Russel-Saunders coupling value, and the hydrogen-constant-core-model value, by 31 and 7 standard deviations respectively.
