Next Article in Journal / Special Issue
Core Effects on Transition Energies for 3dk Configurations in Tungsten Ions
Previous Article in Journal
High-Precision Measurements of the Bound Electron’s Magnetic Moment
Previous Article in Special Issue
Hyperfine Structure and Isotope Shifts in Dy II
Article Menu

Export Article

Open AccessArticle

JJ2LSJ Transformation and Unique Labeling for Energy Levels

Institute of Theoretical Physics and Astronomy, Vilnius University, Saul˙etekio av. 3, LT-10222 Vilnius, Lithuania
Department of Computer Science, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
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)
Full-Text   |   PDF [325 KB, uploaded 27 January 2017]


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).
Printed Edition Available!
A printed edition of this Special Issue is available here.

Share & Cite This Article

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.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Atoms EISSN 2218-2004 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top