Exact Results in Quantum Theory
sala 1.40, ul. Pasteura 5
2024-11-15 (14:15) 
Gregory S. Adkins (Franklin & Marshall College, USA)
High Order Calculation of Energy Levels for Two-Body QED Bound Systems
Powerful methods have been developed recently for the exact evaluation of Feynman integrals. In this talk I will describe one set of methods that allows for the calculation of recoil corrections to the energy levels of two-body bound systems such as positronium and muonium. The results obtained at a given order in the fine structure constant are exact in the masses of the particles involved, and will be useful for comparison with the results of upcoming experiments. Room 1.40 and on zoom Zoom link: https://uw-edu-pl.zoom.us/j/2780321940