Order Alpha Squared Corrections to Positronium Energy Levels and Decay Rates

正电子的结构几乎完全由QED控制；与电动力学效应相比，强修正和弱修正都很小。这使得它成为研究量子电动力学和量子场论中束缚态形式的理想实验室。这项研究的目的是研究正电子中的能级和衰减率。重点将是计算对这些能级和衰减率的α2级修正，并通过m*α2级完成对n=1和n=2正电子能级的评估。这些计算的完成将对束缚态形式论和量子电动力学提供重要的检验。

The structure of positronium is governed almost completely by QED; strong and weak corrections are small compared to electrodynamic effects. This makes it an ideal laboratory for studying QED and the bound state formalism in quantum field theory. The objective of the research is to study the energy levels and decay rates in positronium. The emphasis will be on the calculation of order alpha2 corrections to these energy levels and decay rates and to complete the evaluation of the n=1 and n=2 positronium energy levels through order m*alpha2. Completion of these calculations will provide an important test of the bound state formalism and QED.