Exterior complex scaling method in TDDFT: HHG of Ar atoms in intense laser fields

28th International Conference on Photonic, Electronic and Atomic Collisions

Sosnova, Ksenia E.^1 ; Telnov, Dmitry A.^1 ; Rozenbaum, Efim^1 ; Chu, Shih-I.^2

Department of Physics, St. Petersburg State University, St-Petersburg

198504, Russia^1

Department of Chemistry, University of Kansas, Lawrence

KS

66045, United States^2

关键词: Exterior complex scaling;    Generalized pseudospectral method;    High order harmonic generation;    Intense laser field;    Multielectron atoms;    Time dependent;    Time dependent density functional theory;    Time dependent kohn shams;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/488/3/032004/pdf
DOI  :  10.1088/1742-6596/488/3/032004

来源: IOP

【 摘 要 】

Exterior complex scaling (ECS) method is applied in the framework of the time-dependent density functional theory to study high-order harmonic generation (HHG) of multielectron atoms in intense laser fields. ECS allows to impose correct (outgoing-wave) boundary conditions on the wave functions at large distances. In the present work, ECS is combined with the time-dependent generalized pseudospectral method for accurate and efficient solution of the time-dependent Kohn-Sham equations. Results for HHG of Ar atoms are presented.