Thermal corrections to the one-photon spontaneous and induced transition probabilities for hydrogen and hydrogen-like ions are evaluated. The found thermal corrections are given by the vertex Feynman graph, where the vertex represents the thermal interaction between the bound electron and the nucleus. All derivations of thermal corrections to bound–bound transitions for an atom exposed to blackbody radiation are made in a fully relativistic approach within the framework of the adiabatic S-matrix formalism. It is found that the vertex-type radiative corrections to the transition rates can be at the level of a few percent to corresponding spontaneous rates for highly excited states in the hydrogen atom. A comprehensive analysis of the vertex-type thermal corrections for hydrogen-like atomic systems is presented.

评估了对氢和类氢离子的单光子自发和诱导跃迁概率的热校正。发现的热校正由顶点费曼图给出，其中顶点表示束缚电子和原子核之间的热相互作用。对暴露于黑体辐射的原子的束缚跃迁热校正的所有推导都是在绝热S矩阵形式主义的框架内以完全相对论的方法进行的。发现对跃迁率的顶点型辐射校正可以处于氢原子中高激发态的相应自发率的几个百分点的水平。对类氢原子系统的顶点型热校正进行了综合分析。