[PDF]
http://dx.doi.org/10.3952/lithjphys.48101
Open access article / Atviros prieigos straipsnis
Lith. J. Phys. 48, 17–23 (2008)
ESTIMATION OF LS-COUPLING
VALIDITY WITHIN CONFIGURATION INTERACTION APPROACH*
P. Bogdanovicha and P. Ščajevb
aInstitute of Theoretical Physics and Astronomy of
Vilnius University, A. Goštauto 12, LT-01108 Vilnius, Lithuania
E-mail: pavlas@itpa.lt
bFaculty of Physics, Vilnius University, Saulėtekio
9, LT-10222 Vilnius, Lithuania
Received 11 June 2007; accepted 21
November 2007
Different methods of estimating
the LS-coupling validity are compared using the results
obtained within the configuration interaction approach. The
techniques used earlier and proposed in the present paper were
applied to evaluate the validity of LS-coupling for
description of energy levels of the ground and excited
configurations of ions of the long isoelectronic sequences of
carbon, nitrogen, oxygen, fluorine, and scandium. The performed
investigation revealed that the methods proposed in present paper
provide the more physically-based results.
Keywords: LS-coupling scheme,
configuration interaction
PACS: 31.15.Ar, 31.25.Eb, 31.25.Jf
*The report presented at the 37th Lithuanian National Physics
Conference, 11–13 June 2007, Vilnius, Lithuania.
LS RYŠIO GRYNUMO
ĮVERTINIMAS KONFIGŪRACIJŲ SUPERPOZICIJOS ARTINYJE
P. Bogdanovicha, P. Ščajevb
aVilniaus universiteto Teorinės fizikos ir
astronomijos institutas, Vilnius, Lietuva
bVilniaus universiteto Fizikos fakultetas,
Vilnius, Lietuva
Lyginami skirtingi LS ryšio grynumo
įvertinimo metodai tikrinėms energijos operatoriaus funkcijoms,
gaunamoms konfigūracijų superpozicijos artinyje. Naudoti anksčiau
ir šiame darbe pristatyti metodai taikomi vertinant LS
ryšio tinkamumą pagrindinių ir sužadintų konfigūracijų lygmenims
aprašyti ilgose anglies, azoto, deguonies, fluoro ir skandžio
izoelektroninėse sekose. Atlikti tyrimai parodė, kad šiame darbe
siūlomi metodai duoda labiau pagrįstus fizikiniu požiūriu
rezultatus.
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