TITLE

Two-photon ionization of helium studied with the multiconfigurational time-dependent Hartree-Fock method

AUTHOR(S)
Hochstuhl, David; Bonitz, Michael
PUB. DATE
February 2011
SOURCE
Journal of Chemical Physics;2/28/2011, Vol. 134 Issue 8, p084106
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The multiconfigurational time-dependent Hartree-Fock method (MCTDHF) is applied for simulations of the two-photon ionization of helium. We present results for the single and double ionizations from the ground state for photon energies in the nonsequential regime and compare them to direct solutions of the Schrödinger equation using the time-dependent (full) configuration interaction (TDCI) method. We find that the single ionization is accurately reproduced by MCTDHF, whereas the double ionization results correctly capture the main trends of TDCI.
ACCESSION #
58700412

 

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