Jahn—A program for representing atomic and nuclear states within an isospin basis

Abstract
A computer program is presented to deal with atomic and nuclear state functions within an isospin-coupled basis. Apart from the classification of the isospin bases states, the program Jahn supports the computation of the corresponding coefficients of fractional parentage as well as of the transformation matrices going from a LS-coupled to an isospin-coupled basis. In the future, these features may facilitate the treatment of atomic systems in order to obtain a deeper insight into the coupling...

Title of program: JAHN
Catalogue Id: ADXA_v1_0

Nature of problem
The accurate computation of atomic (nuclear) properties and level structures requires a good understanding and implementation of the atomic (nuclear) shell model and, hence, a fast and reliable access to its classification, the coefficients of fractional parentage and the coefficients of fractional grandparentage. For open-shell atoms and ions, moreover, a reliable classification of the level structure often requires the knowledge of some transformation matrices in order to find the main compone ...

Versions of this program held in the CPC repository in Mendeley Data
ADXA_v1_0; JAHN; 10.1016/j.cpc.2006.02.008

This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)