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

被引：94

作者：

Hochstuhl, David ^{[1
]}

Bonitz, Michael ^{[1
]}

机构：

[1] Inst Theoret Phys & Astrophys, D-24098 Kiel, Germany

来源：

JOURNAL OF CHEMICAL PHYSICS | 2011年 / 134卷 / 08期

基金：

美国国家科学基金会;

关键词：

DYNAMICS; PHOTOIONIZATION; APPROXIMATION; MOLECULES; EQUATION; SINGLE; HE;

D O I：

10.1063/1.3553176

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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 Schrodinger 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. (C) 2011 American Institute of Physics. [doi:10.1063/1.3553176]

引用

页数：10

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