Contribution of the screened self-energy to the Lamb shift of quasidegenerate states

Details Contribution of the screened self-energy to the Lamb shift of quasidegenerate states Contribution of the screened self-energy to the Lamb shift of quasidegenerate states

2000-11-16

arxiv.org/abs/physics/0011037v2

Phys. Rev. A 63, 040501(R) (2001)

Physics

Atomic Physics

5 pages Typesetting modified

Scientific paper

10.1103/PhysRevA.63.040501

Expressions for the effective Quantum Electrodynamics (QED) Hamiltonian due to self-energy screening (self-energy correction to the electron-electron interaction) are presented. We use the method of the two-time Green's function, which handles quasidegenerate atomic states. From these expression one can evaluate energy corrections to, e.g., 1s2p 3P1 and 1s2p 1P1 levels in helium and two-electron ions, to all orders in Z\alpha

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