Complex-scaling generalized pseudospectral method for quasienergy resonance states in two-center systems: Application to the Floquet study of charge resonance enhanced multiphoton ionization of molecular ions in intense low-frequency laser fields

被引：69

作者：

Chu, Xi ^{[1
]}

Chu, Shih-I. ^{[1
]}

机构：

[1] Department of Chemistry, University of Kansas, Kansas Ctr. for Adv. Sci. Computing, Lawrence, KS 66045, United States

来源：

Physical Review A - Atomic, Molecular, and Optical Physics | 2001年 / 63卷 / 01期

关键词：

Electron energy levels - Electron resonance - Electronic structure - Hamiltonians - Ionization of gases - Laser beam effects - Mathematical models - Molecular structure - Multiphoton processes;

D O I：

10.1103/PhysRevA.63.013414

中图分类号：

学科分类号：

摘要：

The optimal nonuniform grid discretization of the Hamiltonian in prolate spheroidal coordinates was used to analyze the resonance states in two center molecular systems. A complex scaling generalized pseudospectral method was applied to the non-Hermitian Floquet study of multiphoton ionization of molecular ions in intense low frequency laser fields. The mechanism responsible for the ionization enhancement of helium at some internuclear distances is also discussed.

引用

页码：013414 / 013411