Simulating photo-dissociation in strong field by the random phase thermal wavefunction approach

Abstract

Simulating photo-dissociation processes is a challenging task when the number of states involved is significantly large. We present an ab-initio quantum model for strong field photo-dissociation processes which incorporates rotational dynamics. The computational complexity was reduced by employing the random phase thermal wavefunction method. The simulation outcome are analogous to experimental observable, such as the momentum angular distribution of the photo-fragments. We studied the convergence of these observables at two field intensities. The simulation method can be applied to wide-ranging time-domain spectroscopy at experimental conditions far beyond the reach of accurate direct numerical methods.