Quantum Electrodynamics of the Helium Atom

Details Quantum Electrodynamics of the Helium Atom Quantum Electrodynamics of the Helium Atom

2001-03-22

arxiv.org/abs/hep-ph/0103241v1

Phys.Rev. A64 (2001) 062104

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, revtex

Scientific paper

10.1103/PhysRevA.64.062104

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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