We present a general technique to solve one-dimensional time-dependent Schrödinger-type equations. A mapped infinite elements approach is used to eliminate spurious reflections of outgoing wave packets from the boundaries of the interval of interest. This procedure leads to more precise solutions because the space coordinates are discretized to approximate the solution in the entire physical domain. We show its utility giving numerical results on three typical examples: a bounded short-range potential; the unbounded potential of a particle in a dc field; and a Hamiltonian with an intrinsic time dependence like the Hamiltonian of a charged particle in an ac electromagnetic field.
Keywords
#time-dependent Schrödinger equation
#spurious reflections
#one-dimensional quantum systems
#short-range potentials
#time-dependent Hamiltonian
#unbounded domains
#Bounded function
#Hamiltonian (control theory)
#Discretization
#Electromagnetic field
#Wave packet
#Spurious relationship
#Schrödinger equation
#Mathematics
Bibliographic Details
Publication TypeJournal article
Publication Year2005
Journal / Conference / WorkInternational Journal of Modern Physics C
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