A TIME-DEPENDENT FOURIER GRID HAMILTONIAN METHOD - FORMULATION AND APPLICATION TO THE MULTIPHOTON DISSOCIATION OF A DIATOMIC MOLECULE IN INTENSE LASER FIELD

被引：81

作者：

ADHIKARI, S ^{[1
]}

DUTTA, P ^{[1
]}

BHATTACHARYYA, SP ^{[1
]}

机构：

[1] INDIAN ASSOC CULTIVAT SCI,DEPT PHYS CHEM,CALCUTTA 700032,W BENGAL,INDIA

来源：

CHEMICAL PHYSICS LETTERS | 1992年 / 199卷 / 06期

关键词：

D O I：

10.1016/0009-2614(92)85012-Y

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：

A time-dependent Fourier grid Hamiltonian method is proposed for studying real-time quantum dynamics of simple systems. The method can work with an arbitrary number of grid points (N). Convergence with respect to N is fast. Results of test calculations on the dynamics of dissociation of a diatomic species modelled by an appropriate Morse oscillator in a continuous high intensity non-resonant IR laser field are presented. The dissociation is predicted to be characterized by the presence of a definite threshold of laser intensity and an induction period preceeding the onset of dissociation.

引用

页码：574 / 579

页数：6

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