Relaxation effect and radiative corrections in many-electron atoms

Details Relaxation effect and radiative corrections in many-electron atoms Relaxation effect and radiative corrections in many-electron atoms

2004-01-10

arxiv.org/abs/physics/0401043v1

Phys. Rev. A 69 . 054502 (2004)

Physics

Atomic Physics

Scientific paper

10.1103/PhysRevA.69.054502

We illuminate the importance of a self-consistent many-body treatment in calculations of vacuum polarization corrections to the energies of atomic orbitals in many-electron atoms. Including vacuum polarization in the atomic Hamiltonian causes a substantial re-adjustment (relaxation) of the electrostatic self-consistent field. The induced change in the electrostatic energies is substantial for states with the orbital angular momentum $l &;gt; 0$. For such orbitals, the relaxation mechanism determines the sign and even the order of magnitude of the total vacuum polarization correction. This relaxation mechanism is illustrated with numerical results for the Cs atom.

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