Determination of structure parameters in strong-field ionization models of atoms

被引：1

作者：

Gao, Xuan-Hong ^{[1
]}

Zhang, Lei ^{[2
]}

Jiao, Zhi-Hong ^{[1
]}

Wang, Guo-Li ^{[1
]}

Zhao, Song-Feng ^{[1
]}

机构：

[1] Northwest Normal Univ, Coll Phys & Elect Engn, Key Lab Atom & Mol Phys & Funct Mat Gansu Prov, Lanzhou 730070, Gansu, Peoples R China

[2] Lanzhou Jiaotong Univ, Sch Math & Phys, Lanzhou 730070, Gansu, Peoples R China

来源：

COMMUNICATIONS IN THEORETICAL PHYSICS | 2020年 / 72卷 / 09期

基金：

中国国家自然科学基金;

关键词：

strong-field ionization models; structure parameters; density-functional theory; MULTIPHOTON; MOLECULES;

D O I：

10.1088/1572-9494/aba248

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The Ammosov-Delone-Krainov (ADK) and Perelomov-Popov-Terent'ev (PPT) ionization models were widely used in strong-field physics and attosecond science due to their many attractive advantages such as simpler analytical formula, less computational demands, and satisfied accuracy of ionization rate. Based on the density-functional theory, we systematically determine accurate structure parameters of 25 atoms, 24 positive ions and 13 negative ions and tabulate for future applications. The wave function with correct asymptotic behavior is obtained by solving the time-independent Schrodinger equation with B-spline basis sets and the accurate structure parameters are extracted from this wave function in the asymptotic region. The accuracies of structure parameters are carefully examined by comparing the ionization probabilities (or yields) calculated by PPT and ADK models with those of solving the three-dimensional time-dependent Schrodinger equation and the experimental data.

引用

页数：9

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