Open AccessPost-collision interaction in sequential double-ionization of helium
Author(s) -
A. N. Artemyev,
Alexej I. Streltsov,
Ph V Demekhin
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1412/15/152003
Subject(s) - atomic physics , photoelectric effect , collision , helium atom , ionization , electron , helium , pulse (music) , ion , physics , hamiltonian (control theory) , eigenvalues and eigenvectors , schrödinger equation , chemistry , quantum mechanics , mathematics , voltage , mathematical optimization , computer security , computer science
Synopsis We investigate the post-collision interaction between a slow electron released by a pump pulse from the neutral helium atom and a fast electron released by a time-delayed probe pulse from the created ion. To this end, we numerically solve the time-dependent Schrödinger equation in the basis of the essential eigenstates of the unperturbed Hamiltonian. We demonstrate that the energy exchange between the slow and the fast electrons and the recapture of slow photoelectrons can be controlled by the properties of the pulse-sequence.