THE SOLUTION OF THE TIME-DEPENDENT SCHRODINGER-EQUATION BY THE (T,T')METHOD - MULTIPHOTON IONIZATION DISSOCIATION PROBABILITIES IN DIFFERENT GAUGES OF THE ELECTROMAGNETIC POTENTIALS/
U. Peskin et al., THE SOLUTION OF THE TIME-DEPENDENT SCHRODINGER-EQUATION BY THE (T,T')METHOD - MULTIPHOTON IONIZATION DISSOCIATION PROBABILITIES IN DIFFERENT GAUGES OF THE ELECTROMAGNETIC POTENTIALS/, The Journal of chemical physics, 100(10), 1994, pp. 7310-7318
A new approach is introduced for the calculation of multiphoton partia
l decay rates; in ionizing and dissociative processes. The partial dec
ay rates (partial resonance widths) are calculated by carrying out asy
mptotic analysis of a complex scaled resonance quasienergy solution of
the time-dependent Schrodinger equation obtained when the acceleratio
n, momentum, reduced momentum, or length gauges are used. The partial
width analysis is made only after applying the proper complex-scaled t
ransformations on the resonance solution. The recently developed (t,t'
) algorithm [J. Chem. Phys. 99, 4590 (1990)] significantly reduces the
computational effort when the Hamiltonian is represented in the momen
tum gauge or in the length gauge. The new approach is applied to a mod
el Hamiltonian which describes the multiphoton detachment of Cl- in th
e A(r)F laser field.