Absorption Spectrum of a Potassium Atom in a Xe Cluster

摘要

We calculate the absorption spectrum for a simple model that mimics a potassiumatom in a Xe cluster. The time evolution of the electron wave function is calculated by a fast Fourier transform method while nuclear motion is treated classically. The initial nuclear configurations are generated by a Monte do method. We examine which features in the spectrum are caused by electron, potassium ion or motion and the frequency resolution at which these features appear.