The theory of nonequilibrium Anderson impurity model for strongly correlated electron systems
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
The theory of nonequilibrium Anderson impurity model for strongly correlated electron systems
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| Creator |
Moskalenko, V.A.
Dohotaru, L.A. Digor, D.F. |
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| Subject |
К 70-летию со дня рождения В. М. Локтева
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| Description |
The nonequilibrium theory of strongly correlated systems is proposed theory which is grounded on the generalized Wick theorem. This theorem is employed for calculation of the thermal averages of the contour arranged products of electron operators by generalizing Keldysh formalism. Perturbation expansion is realized for Anderson impurity model in which we consider the Coulomb interaction of the impurity electrons as a main parameter of the model and the mixing interaction between impurity and conduction electrons as a perturbation. The first two approximations are used and is obtained the value of the current between one of the leads and central region of interacting electrons. The contribution of the strong correlations and of irreducible diagrams is analyzed.
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| Date |
2017-06-26T18:31:43Z
2017-06-26T18:31:43Z 2015 |
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| Type |
Article
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| Identifier |
The theory of nonequilibrium Anderson impurity model for strongly correlated electron systems / V.A. Moskalenko, L.A. Dohotaru, D.F. Digor // Физика низких температур. — 2015. — Т. 41, № 5. — С. 514-519. — Бібліогр.: 24 назв. — англ.
0132-6414 PACS: 71.27.+a, 71.10.Fd http://dspace.nbuv.gov.ua/handle/123456789/122085 |
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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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