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We report our computational studies concerning the response of a hydrogen atom initially in its ground state subject to short intense laser pulses with linear polarization. The time-dependent Schrödinger equation in a space-translated Kramers-Henneberger frame of reference is integrated numerically on a parallel computer with virtual shared memory (KSR1-32). The singularities of the system's Hamiltonian...
This paper describes the Fast Fourier Transform (FFT) subroutine library FFTVPLIB, which was developed for the Siemens Vector Processors, as a part of the ODIN — cooperation. The key feature of FFTVPLIB is the automatic selection between various data structures and vectorization methods, leading to high performance for most of the common forms of FFT's. It is suggested to generalize this concept to...