dorsal/arxiv
View SchemaThe library of subroutines for calculating standard quantities in atomic structure theory
| Authors | G. Gaigalas |
|---|---|
| Categories | |
| ArXiv ID | physics/0405071 |
| URL | https://arxiv.org/abs/physics/0405071 |
| Journal | Lithuanian Journal of Physics 41 (2001) 39-54 |
Abstract
This library (collection of subroutines) is presented for calculating standard quantities in the decomposition of many-electron matrix elements in atomic structure theory. These quantities include the coefficients of fractional parentage, the reduced coefficients of fractional parentage as well as reduced and completely reduced matrix elements for several operators. So the library is assigned for any computational scheme. The software is an implementation of a methodology based on the second quantization in coupled tensorial form, the angular momentum theory in 3 spaces (orbital, spin and quasispin), and the graphical technique of angular momentum. This implementation extends applications in atomic theory capabilities to partially filled f-- shells and has lead to faster execution of angular integration codes.
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"abstract": "This library (collection of subroutines) is presented for calculating\nstandard quantities in the decomposition of many-electron matrix elements in\natomic structure theory. These quantities include the coefficients of\nfractional parentage, the reduced coefficients of fractional parentage as well\nas reduced and completely reduced matrix elements for several operators. So the\nlibrary is assigned for any computational scheme. The software is an\nimplementation of a methodology based on the second quantization in coupled\ntensorial form, the angular momentum theory in 3 spaces (orbital, spin and\nquasispin), and the graphical technique of angular momentum. This\nimplementation extends applications in atomic theory capabilities to partially\nfilled f-- shells and has lead to faster execution of angular integration\ncodes.",
"arxiv_id": "physics/0405071",
"authors": [
"G. Gaigalas"
],
"categories": [
"physics.atom-ph",
"physics.comp-ph"
],
"journal_ref": "Lithuanian Journal of Physics 41 (2001) 39-54",
"title": "The library of subroutines for calculating standard quantities in atomic structure theory",
"url": "https://arxiv.org/abs/physics/0405071"
},
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"version": "0.1.0"
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