Український математичний конгрес - 2009
Людмила Никола (Одесский государственный экологический университет, Одесса, Украина)
Advanced S-matrix formalism in the Auger spectra theory
A novel approach to the Auger decay characteristics for complex atomic systems is proposed and based on the S-matrix formalism by Gell-Mann and Low and QED perturbation theory . As application its adaptation to studying Auger decay characteristics for atoms and solids is presented . The novel element consists in an using the optimal basis of the electron state functions derived from the condition that the calibration-non-invariant contribution of the second order polarization diagrams to the imaginary part of the multi-electron system energy is minimized already at the first non-disappearing approximation of the perturbation theory.
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