Автор |
C Rudowicz |
Автор |
Yu Wan-Lun |
Дата выпуска |
1991-10-21 |
dc.description |
Double and multiple irreducible products of irreducible tensor operators O<sup>(ki)</sup>(J) obeying special commutation relations arising from the properties of angular momentum operators are considered. It is shown that the double product can be expressed in terms of another set O<sup>(k)</sup> associated with a coupling coefficient epsilon <sub>k</sub><sup>(k1,k2)</sup> defined by (O<sup>(k1)</sup>*O<sup>(k2)</sup>)<sup>(k)</sup>= epsilon <sub>k</sub><sup>(k1,k2)</sup>O<sup>(k)</sup>. An analytical expression has been derived for the coupling coefficient epsilon <sub>k</sub><sup>(k1,K2)</sup> and its values are tabulated for k<sub>1</sub> and k<sub>2</sub> up to 3. It is proved that (O<sup>(k1)</sup>*O<sup>(k2)</sup>)<sup>(k)</sup>=(O<sup>(k2)</sup>*O<sup>(k1)</sup>)<sup>(k)</sup>. Multiple irreducible products are also discussed. The coupling coefficients for triple products are tabulated for Sigma <sub>i</sub>k<sub>i</sub> up to 6. Some important special cases of quadruple products are dealt with explicitly. Applications of the present results to high-order effects in spectroscopy are investigated. |
Формат |
application.pdf |
Издатель |
Institute of Physics Publishing |
Название |
Reduction tables for tensorial products of irreducible tensor operators O<sup>(k)</sup>(J) used in spectroscopy |
Тип |
paper |
DOI |
10.1088/0953-8984/3/42/017 |
Electronic ISSN |
1361-648X |
Print ISSN |
0953-8984 |
Журнал |
Journal of Physics: Condensed Matter |
Том |
3 |
Первая страница |
8225 |
Последняя страница |
8235 |
Аффилиация |
C Rudowicz; Dept. of Appl. Sci., City Polytech. of hong Kong, Kowloon, Hong Kong |
Аффилиация |
Yu Wan-Lun; Dept. of Appl. Sci., City Polytech. of hong Kong, Kowloon, Hong Kong |
Выпуск |
42 |