Abstract
The semiclassical description of two-electron dynamics is reviewed and recent developments are highlighted. We discuss the semiclassical quantization of intermittency, which leads to a modified summation of periodic orbits in the Gutzwiller trace formula for Rydberg series of resonances. Furthermore, we present a semiclassical S-matrix formulation of Coulomb scattering, which can describe twoelectron escape. Thereby, we cover an energy range of the two-electron system from the ground state across the complete fragmentation threshold into the two-electron continuum. We will illustrate the results for the helium atom, electron-hydrogen and electron-helium scattering.
Extra Phasen? - ach was, die mendeln sich im semiklassischen Limes sowieso raus! Dieter Wintgen
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Rost, JM., Tanner, G. (1997). Two-electron atoms: From resonances to fragmentation. In: Friedrich, H., Eckhardt, B. (eds) Classical, Semiclassical and Quantum Dynamics in Atoms. Lecture Notes in Physics, vol 485. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0105979
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DOI: https://doi.org/10.1007/BFb0105979
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