| Автор | Gediminas Gaigalas |
| Автор | Zenonas Rudzikas |
| Дата выпуска | 1996-08-14 |
| dc.description | The traditional theory of many-electron atoms and ions is based on the coefficients of fractional parentage and matrix elements of tensorial operators, composed of unit tensors. The calculation of spin-angular coefficients of radial integrals appearing in the expressions of matrix elements of arbitrary physical operators of atomic quantities has two main disadvantages: (i) the numerical codes for the calculation of spin-angular coefficients are usually very time consuming; (ii) f-shells are often omitted from programs for matrix element calculations since the tables for their coefficients of fractional parentage are very extensive. The authors assume that a series of difficulties persisting in the traditional approach to the calculation of spin-angular parts of matrix elements can be avoided by using this secondly quantized methodology, based on angular momentum theory, on the concept of the irreducible tensorial sets, on a generalized graphical method, on quasispin and on the reduced coefficients of fractional parentage. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | On the secondly quantized theory of the many-electron atom |
| Тип | paper |
| DOI | 10.1088/0953-4075/29/15/007 |
| Electronic ISSN | 1361-6455 |
| Print ISSN | 0953-4075 |
| Журнал | Journal of Physics B: Atomic, Molecular and Optical Physics |
| Том | 29 |
| Первая страница | 3303 |
| Последняя страница | 3318 |
| Аффилиация | Gediminas Gaigalas; State Institute of Theoretical Physics and Astronomy, A Gostauto 12, 2600 Vilnius, Lithuania |
| Аффилиация | Zenonas Rudzikas; State Institute of Theoretical Physics and Astronomy, A Gostauto 12, 2600 Vilnius, Lithuania |
| Выпуск | 15 |
