Multiphoton quantum dynamics of many-electron atomic and molecular systems in intense laser fields  

作　　者：Peng-Cheng Li Shih-I Chu 李鹏程;Shih-I Chu(Research Center for Advanced Optics and Photoelectronics,Department of Physics,College of Science,Shantou University,Shantou 515063,China;Key Laboratory of Intelligent Manufacturing Technology of MOE,Shantou University,Shantou 515063,China;Department of Chemistry,University of Kansas,Lawrence,Kansas 66045,USA)

机构地区：[1]Research Center for Advanced Optics and Photoelectronics,Department of Physics,College of Science,Shantou University,Shantou 515063,China [2]Key Laboratory of Intelligent Manufacturing Technology of MOE,Shantou University,Shantou 515063,China [3]Department of Chemistry,University of Kansas,Lawrence,Kansas 66045,USA

出　　处：《Chinese Physics B》2020年第8期115-126,共12页中国物理B（英文版）

基　　金：the National Natural Science Foundation of China(Grant Nos.11674268 and 11764038);the Natural Science Foundation of Guangdong Province,China(Grant No.2020A1515010927);Department of Education of Guangdong Province,China(Grant Nos.2018KCXTD011 and 2019KTSCX037).

摘　　要：We present the recent new developments of time-dependent Schrödinger equation and time-dependent density-functional theory for accurate and efficient treatment of the electronic structure and time-dependent quantum dynamics of many-electron atomic and molecular systems in intense laser fields.We extend time-dependent generalized pseudospectral(TDGPS)numerical method developed for time-dependent wave equations in multielectron systems.The TDGPS method allows us to obtain highly accurate time-dependent wave functions with the use of only a modest number of spatial grid point for complex quantum dynamical calculations.The usefulness of these procedures is illustrated by a few case studies of atomic and molecular processes of current interests in intense laser fields,including multiphoton ionization,above-threshold ionization,high-order harmonic generation,attosecond pulse generation,and quantum dynamical processes related to multielectron effects.We conclude this paper with some open questions and perspectives of multiphoton quantum dynamics of many-electron atomic and molecular systems in intense laser fields.

关 键 词：multiphoton ionization above-threshold ionization high-order harmonic generation attosecond pulse generation 

分 类 号：O431.2[机械工程—光学工程]