Many-particle correlations and boundary conditions in the quantum kinetic theory
The problem of many-particle correlations in different approaches to the quantum kinetic theory is treated on the basis of Zubarev's method of the nonequilibrium statistical operator. It is shown that long-lived correlations can be incorporated through boundary conditions for reduced manypar...
Збережено в:
| Дата: | 1998 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
1998
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/119889 |
| Теги: |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Many-particle correlations and boundary conditions in the quantum kinetic theory / V.G. Morozov, G. Röpke // Condensed Matter Physics. — 1998. — Т. 1, № 4(16). — С. 797-814. — Бібліогр.: 14 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | The problem of many-particle correlations in different approaches to the
quantum kinetic theory is treated on the basis of Zubarev's method of
the nonequilibrium statistical operator. It is shown that long-lived correlations can be incorporated through boundary conditions for reduced manyparticle density matrices and the nonequilibrium real-time Green functions.
Within the method of Green functions the boundary conditions are conveniently formulated in terms of the “mixed” Green functions defined on a directed contour with the real-time evolution governed by the Hamiltonian of
the system and the “imaginary-time” evolution governed by the entropy operator. The perturbation expansion of the mixed Green function is obtained
in terms of the interaction part of the Hamiltonian and the correlation part
of the entropy operator. |
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