Short-wavelength asymptotics of time correlation functions
Short–wavelength asymptotics of time correlation functions (TCF) of simple classical fluids is considered in the framework of short time expansion. The explicit expressions for zeroth time moments up to the 8-th order of cumulant are presented in the framework of additive approach. It is shown t...
Збережено в:
| Дата: | 2001 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2001
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/120414 |
| Теги: |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Short-wavelength asymptotics of time correlation functions / V.V. Ignatyuk // Condensed Matter Physics. — 2001. — Т. 4, № 2(26). — С. 243-250. — Бібліогр.: 14 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Резюме: | Short–wavelength asymptotics of time correlation functions (TCF) of simple
classical fluids is considered in the framework of short time expansion.
The explicit expressions for zeroth time moments up to the 8-th order of
cumulant are presented in the framework of additive approach. It is shown
that unlike the dynamic structure factor which is found to have Gaussian
form in short-wavelength limit, nongaussian corrections are present in TCF
“density–energy” and “energy–energy”. The comparison with generalized
collective modes approach as well as data for quantum liquids is discussed. |
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