PROGRAM SUMMARY
Title of program:
BSPCI2E
Catalogue identifier:
ADQV
Ref. in CPC:
150(2003)140
Distribution format: tar gzip file
Number of lines in distributed program, including test data, etc:
8808
Keywords:
Multiphoton ionization, Two-electron atoms, LOPT, Configuration
interaction, B-splines, Atomic physics, Scattering, Photon.
Programming language used: Fortran, C++
Computer:
IBM ,
SUN ,
PC .
Nature of physical problem:
Ab-initio calculation of one- and two-photon ionization cross sections
for two-electron atoms under strong laser fields, within lowest-order
perturbation theory and in dipole approximation.
Method of solution:
LOPT with the atomic structure obtained through configuration
interaction of antisymmetrized two-electron states.
Typical running time:
It mainly depends on the number of B splines and the number of the
included two-electron configurations for each total angular momentum.
For the present examples (300 B-splines) and ~1000 configurations for
L = S,P,D, on a AMD K-6 1000MHZ processor, typical running time is about
24 minutes of CPU time.
Unusual features:
The package uses the publicly available SLATEC, LAPACK, BLAS libraries.