PROGRAM SUMMARY
Title of program:
ZEEMAN
Catalogue identifier:
ADPN
Ref. in CPC:
144(2002)188
Distribution format: gzip file
Peripherals Required: disc
Number of lines in distributed program, including test data, etc:
940
Keywords:
Lande g factor, Zeeman effect, Magnetic field, Multiconfiguration
Hartree-Fock+Breit-Pauli, Intermediate coupling, Atomic physics,
Structure.
Programming language used: Fortran, Matlab
Computer:
IBM-compatible PC .
Nature of physical problem:
Prediction of Zeeman splittings using Breit-Pauli wave functions.
Method of solution:
The electronic wave function for a state labeled gammaJM can be
expanded in terms of LSJ coupled configuration state functions
Psi(gammaJM) = Sigmai(ci Phi(gammaiLiSiJM)). The Lande g factor can
then generally be calculated by summing the g factors between
configuration state functions weighted by the product of the expansion
coefficients. Using the Lande g factors the total interaction matrix is
constructed. By diagonalizing the interaction matrix for different
values of the magnetic field the positions of the magnetic sublevels are
obtained.
Restrictions:
The complexity of the cases that can be handled is entirely determined
by the MCHF atomic structure package [1] used for the generation of the
electronic wave functions.
References:
[1] C. Froese Fischer, Computer Phys. Commun. 64 (1991), 369.