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Atoms 2017, 5(1), 6; doi:10.3390/atoms5010006

JJ2LSJ Transformation and Unique Labeling for Energy Levels

1
Institute of Theoretical Physics and Astronomy, Vilnius University, Saul˙etekio av. 3, LT-10222 Vilnius, Lithuania
2
Department of Computer Science, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
3
Materials Science and Applied Mathematics, Malmö University, SE-205 06 Malmö, Sweden
*
Author to whom correspondence should be addressed.
Received: 21 December 2016 / Accepted: 19 January 2017 / Published: 27 January 2017
(This article belongs to the Special Issue Spectra of Ionized Atoms: From Laboratory to Space)
View Full-Text   |   Download PDF [325 KB, uploaded 27 January 2017]

Abstract

The JJ2LSJ program, which is important not only for the GRASP2K package but for the atom theory in general, is presented. The program performs the transformation of atomic state functions(ASFs) from a jj-coupled CSF basis into an LSJ-coupled CSF basis. In addition, the program implements a procedure that assigns a unique label to all energy levels. Examples of how to use the JJ2LSJ program are given. Several cases are presented where there is a unique labeling problem. View Full-Text
Keywords: energy levels; LSJ-coupling; jj-coupling; JJ2LSJ transformation; unique label energy levels; LSJ-coupling; jj-coupling; JJ2LSJ transformation; unique label
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Gaigalas, G.; Fischer, C.F.; Rynkun, P.; Jönsson, P. JJ2LSJ Transformation and Unique Labeling for Energy Levels. Atoms 2017, 5, 6.

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