论文标题
氢的两光谱光谱中的角相关性
Angular correlations in two-photon spectroscopy of hydrogen
论文作者
论文摘要
在本文中，我们认为基于两光子光谱的实验中的氢气中的$ 2S-NS/ND $过渡频率。对严格量子电动力学框架内的量子干扰效应的角相关性进行了详细研究。在原子水平上的谐振两光子散射横截面的封闭表达式依赖于所有原子量子数，包括精细和超细结构。这些表达式用于基于两光谱光谱的实验描述，并固定入射（传出）光子极化。我们证明，对于某些实验几何形状，非谐振校正对于确定Rydberg常数和质子电荷半径可能很重要。
In the present paper, we consider nonresonant corrections to $ 2s-ns/nd $ transition frequencies in hydrogen for the experiments based on two-photon spectroscopy. A detailed study of angular correlations of quantum interference effects within the framework of rigorous quantum electrodynamics is given. Closed expressions for the resonant two-photon scattering cross sections on an atomic level with dependence on all atomic quantum numbers including fine and hyperfine structure are derived. These expressions are applied for the description of experiments based on two-photon spectroscopy with fixing of incident (outgoing) photon polarizations. We demonstrate that for certain experimental geometry nonresonant corrections could be significant for the determination of Rydberg constant and proton charge radius.
