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Manuscript Title: General subroutines for calculation of atomic and molecular two- centre integrals.
Authors: J.P. Hansen
Program title: ALAIN
Catalogue identifier: ABLY_v1_0
Distribution format: gz
Journal reference: Comput. Phys. Commun. 58(1990)217
Programming language: Fortran.
Computer: SUN 3/50.
Operating system: UNIX.
RAM: 438K words
Word size: 7
Keywords: Molecular physics, Atomic, Transfer charge, Two-centre, Integrals, Fourier transform Impact parameter, Collisions, Symbolic manipulations.
Classification: 16.10.

Nature of problem:
Calculation of two-centre overlap and coupling elements for atomic and molecular purposes based on the Fourier transform method.

Restrictions:
These are in principle only restricted by the computer memory. Integrals of quantum numbers up 1,m <= 3 has been tested by the present array sizes

Unusual features:
Algebraic manipulation techniques are programmed in Fortran for direct inclusion in larger numerical codes.

Running time:
The first test example required 0.9 CPU seconds. The second test example required 58 CPU seconds.