Natural orbital functional theory and pairing correlation effects in electron momentum density
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Natural orbital functional theory and pairing correlation effects in electron momentum density
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| Creator |
Barbiellini, В.
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| Subject |
Электронная структура и Ферми поверхность
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| Description |
Occupation numbers of natural orbitals capture the physics of strong electron correlations in momentum space. A natural orbital density functional theory based on the antisymmetrized geminal product provides these occupation numbers and the corresponding electron momentum density. A practical implementation of this theory approximates the natural orbitals by the Kohn–Sham orbitals and uses a mean-field approach to estimate pairing amplitudes leading to corrections for the independent particle model. The method is applied to weakly doped La₂CuO₄. |
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| Date |
2017-06-07T03:41:43Z
2017-06-07T03:41:43Z 2014 |
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| Type |
Article
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| Identifier |
Natural orbital functional theory and pairing correlation effects in electron momentum density / B. Barbiellini // Физика низких температур. — 2014. — Т. 40, № 4. — С. 414-419. — Бібліогр.: 61 назв. — англ.
0132-6414 PACS 71.10.–w, 71.15.–m, 74.72.–h, 71.10.Ca http://dspace.nbuv.gov.ua/handle/123456789/119449 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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