Title
A parallel code for simulating the ionization of hydrogen with short intense laser pulses
Abstract
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 Schrdinger 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 in cylindrical coordinates are eliminated by expanding the wave function in a Bessel-Fourier series. In order to reduce storage requirements a discrete variable representation of the grid points is employed, which diagonalizes the potential matrix. The implemented unitary split operator algorithm guarantees an exact and efficient propagation in time. After the atom's interaction with the laser pulse the electronic energy distribution as well as the spectrum of the emitted photons are calculated from the final wave function.
Year
DOI
Venue
1995
10.1007/BFb0046646
HPCN Europe
Keywords
Field
DocType
short intense laser pulse,parallel code,ground state,frame of reference,fourier series,spectrum,parallel computer
Photon,Cylindrical coordinate system,Computational physics,Ionization,Ground state,Hamiltonian (quantum mechanics),Computer science,Parallel computing,Schrödinger equation,Wave function,Theoretical computer science,Laser
Conference
ISBN
Citations 
PageRank 
3-540-59393-4
0
0.34
References 
Authors
1
3
Name
Order
Citations
PageRank
Frank Seyl100.34
Reinhard Schinke251.44
Oswald Haan300.68