单光子跃迁率的顶点型热修正
Vertex-type thermal correction to the one-photon transition rates
摘要：
计算了氢离子和类氢离子的单光子自发和诱导跃迁几率的热修正。所发现的热修正由顶点费曼图给出，其中顶点表示束缚电子与核之间的热相互作用。在绝热$S$ -矩阵理论的框架内，用完全相对论方法推导了黑体辐射下原子束缚-束缚跃迁的热修正.结果表明，对于氢原子的高激发态，顶点辐射对跃迁率的修正可以达到自发跃迁率的百分之几。本文对类氢原子系统的顶点型热修正进行了全面的分析。
英文摘要：
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 (BBR) 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.
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