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Berlin 2001 – scientific programme

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A: Atomphysik

A 17: Posters Friday (Spectroscopy)

A 17.35: Poster

Friday, April 6, 2001, 12:30–15:00, AT3

jjLS transformation matrices for complex atoms — •Tomas Zalandauskas, Gediminas Gaigalas, and Zenonas Rudzikas — State Institute of Theoretical Physics and Astronomy ; A. Goštauto 12, 2600, Vilnius, Lithuania

Nowadays the energy spectra of any atom or ion of any ionization degree may become of interest. For their classification LS coupling scheme is usually adopted. However, there are numerous cases when the other coupling schemes are optimal. E.g., in relativistic approach we face the necessity to make use of jj coupling. Therefore it is necessary to have a possibility to transform the atomic wave functions from one coupling scheme to the other. The efficient methods of the optimisation of coupling scheme are described in [1].

Here we present analytical expressions for some special cases of jjLS transformation matrices as well as the computer code allowing to find their numerical values for the majority of electronic configurations practically needed (open fN shells included).

[1] Z. B. Rudzikas, Theoretical Atomic Spectroscopy (Cambridge Univ. Press, Cambridge, 1997).

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