Thermal radiative corrections to hyperfine structure of light hydrogen-like systems
Abstract
In this work, we consider the thermal correction to the hyperfine interaction in hydrogen, deuterium, and the 3He+ ion. This correction is effectively described by one-loop Feynman graphs in the framework of the quantum electrodynamics theory for bound states at a finite temperature. A simple analysis shows the importance of the obtained results for future prospects for measuring hyperfine splitting. In addition, the application for testing the time variation of fundamental constants is briefly discussed.
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