Lecture:
Introduction. QED in a strong external field
2Ntime Green's function. Interaction representation. Feynman
rules. Twotime Green's function and its analytical properties.
Lecture:
Perturbation theory for calculations of the energy
levels of atomic systems. Energy shift of a single level.
Perturbation theory for degenerate and quasidegenerate
levels. Practical calculations.
Lecture:
Perturbation theory for calculations of the transition
probabilities and cross section of scattering processes.
Photon emission by an atom. Radiative recombination of an
electron with an atom. Photon scattering by an atom. Resonance
scattering: spectral line shape.
Lecture:
Present status of the QED calculations of highZ
fewelectron atoms. Lamb shift. Hyperfine Splitting.
Boundelectron g factor. Radiative recombination of an electron
with a heavy ion. Conclusion.
References:
V.M. Shabaev, Twotime Green's function method in quantum
electrodynamics of highZ fewelectron atoms, Phys. Rep. 356
(2002) 119228.
