论文标题
通过扭曲的光模式对原子多极过渡的普遍激发
Generalized excitation of atomic multipole transitions by twisted light modes
论文作者
论文摘要
进行了一项理论研究，以激发扭曲光模式中心的单个原子。在这里，我们介绍了激发率对关键参数的明确依赖性，例如光的极化，其轨道角动量投影以及其在原子量化轴相对于其传播轴的方向。还详细考虑了原子空间扩散的效果。这项工作中获得的过渡速率的表达式可用于任意电子配置的任何原子。为了确定性，我们将它们应用于$^{2} s_ {1/2}（f = 0）\ rightarrow \; ^{2} f_ {7/2}（f = 3，m = 0）$ electry octupole（e3）$^{171} $ yb $^{+} $ ion中的transition。我们的分析和数值结果适合分析和计划未来的实验，以通过光原子钟中扭曲的光模式激发电二极孔的过渡。
A theoretical study is performed for the excitation of a single atom localized in the center of twisted light modes. Here we present the explicit dependence of excitation rates on critical parameters, such as the polarization of light, its orbital angular momentum projection, and the orientation of its propagation axis with respect to the atomic quantization axis. The effect of a spatial spread of the atom is also considered in detail. The expressions for transition rates obtained in this work can be used for any atom of arbitrary electronic configuration. For definiteness we apply them to the specific case of $^{2}S_{1/2} (F=0) \rightarrow\; ^{2}F_{7/2} (F=3, M=0)$ electric octupole (E3) transition in $^{171}$Yb$^{+}$ ion. Our analytical and numerical results are suitable for the analysis and planning of future experiments on the excitation of electric-dipole-forbidden transitions by twisted light modes in optical atomic clocks.
