Abstract
Time connection between electrons in dynamic atomic systems is considered. We describe time correlation in terms of the Dyson time ordering operator T. In this paper we decompose T into an uncorrelated term Tunc , plus a correlated term Tcor5T2Tunc , which interconnects the time-dependent external interactions. We show that time correlation between electrons requires both Tcor and spatial electron-electron correlation. Two examples are analyzed. In transfer ionization the time correlation operator incoherently changes the shape of an electron-electron Thomas peak. In double excitation the influence of Tcor in amplitudes for coherently interfering pathways changes resonance intensities and profiles.
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