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arXiv · hep-ph/0103241

Quantum Electrodynamics of the Helium Atom

Alexander Yelkhovsky
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Abstract

Using singlet S states of the helium atom as an example, I describe precise calculation of energy levels in few-electron atoms. In particular, a complete set of effective operators is derived which generates O(m*alpha^6) relativistic and radiative corrections to the Schr"odinger energy. Average values of these operators can be calculated using a variational Schr"odinger wave function.

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Alexander Yelkhovsky. 2001-03-22. Quantum Electrodynamics of the Helium Atom. https://doi.org/10.1103/physreva.64.062104

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