IONIZATION RATES OF H-2(+) IN AN INTENSE LASER FIELD BY NUMERICAL-INTEGRATION OF THE TIME-DEPENDENT SCHRODINGER-EQUATION
被引:121
作者:
CHELKOWSKI, S
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机构:Département de Chimie, Faculté des Sciences, Université de Sherbrooke, Sherbrooke
CHELKOWSKI, S
ZUO, T
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h-index: 0
机构:Département de Chimie, Faculté des Sciences, Université de Sherbrooke, Sherbrooke
ZUO, T
BANDRAUK, AD
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h-index: 0
机构:Département de Chimie, Faculté des Sciences, Université de Sherbrooke, Sherbrooke
BANDRAUK, AD
机构:
[1] Département de Chimie, Faculté des Sciences, Université de Sherbrooke, Sherbrooke
来源:
PHYSICAL REVIEW A
|
1992年
/
46卷
/
09期
关键词:
D O I:
10.1103/PhysRevA.46.R5342
中图分类号:
O43 [光学];
学科分类号:
070207 ;
0803 ;
摘要:
A numerical method of integration of the time-dependent Schrodinger equation is presented for the hydrogen atom and for the H-2+ molecule. Cylindrical coordinates are used and the wave function is expressed as a Bessel-Fourier series. This expansion allows one to eliminate singularities present in the Hamiltonian and to use a unitary split operator to evaluate numerically multiphoton transitions. Laser-induced ionization rates for H-2+ are calculated and compared with rates for the hydrogen atom. A strong dependence of the H-2+ ionization rates on the initial vibrational excitation is found.