DescriptionTime-dependent quantum mechanics is an important field, which is not completely understood. Of principal interest is the behavior of solutions of the time dependent Schrödinger equation, possibly including nonlinear terms to model interactions between particles.
In this work, we study the time-dependent behavior of solutions of the Schrödinger equation by a variety of methods. Using techniques of exponential asymptotics, we study the behavior of a model atom in a realistic radiation field. We prove complete ionization for such a system.
We also introduce a new method of open boundaries for numerically solving linear and nonlinear Schrodinger equations. The method introduced is the Time Dependent Phase Space Filter (TDPSF), which filters outgoing waves based on phase space localization. The method is provably correct, and can be extended to slowly decaying potentials.