title: Boundary-free propagation with the time-dependent Schrodinger equation
abstract: We present two methods that allow for the efficient numerical propagation of continuum wave packets to large times. Time-dependent solutions of the Schrodinger equation that include continuum components are numerically challenging to solve because the wave packet travels, spreads, and acquires a spatial phase gradient. The methods we propose account for these kinematic effects analytically in general and numerically tractable schemes.
authors: Department of Physics, Cardwell Hall, Kansas State University, Manhattan, Kansas 66506, USA.
authors: EY
authors: Sidky
authors: BD
authors: Esry