First sound velocity in liquid ⁴He
Based on the many-boson system structure factor, which takes into account three- and four-particle direct correlations, there was found the first sound velocity temperature behaviour in liquid ⁴He in the post-RPA approximation. The expression received for the sound velocity matches with the well-kno...
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| Дата: | 2015 |
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| Формат: | Стаття |
| Мова: | English |
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Інститут фізики конденсованих систем НАН України
2015
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/155264 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | First sound velocity in liquid ⁴He / O.I. Hryhorchak // Condensed Matter Physics. — 2015. — Т. 18, № 4. — С. 43001: 1–7. — Бібліогр.: 33 назв. — англ. |
Репозитарії
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irk-123456789-1552642019-06-17T01:25:37Z First sound velocity in liquid ⁴He Hryhorchak, O.I. Based on the many-boson system structure factor, which takes into account three- and four-particle direct correlations, there was found the first sound velocity temperature behaviour in liquid ⁴He in the post-RPA approximation. The expression received for the sound velocity matches with the well-known results in both low and high temperature limits. The results of this paper can be used to analyze the contributions of three- and four-particle correlations into thermodynamic and structural features of liquid ⁴He . На основi виразу для структурного фактора багатобозонної системи з урахуванням прямих три- i чотиричастинкових кореляцiй знайдено температурну поведiнку швидкостi першого звуку в рiдкому ⁴He в пост-RPA наближеннi. У границi як низьких, так i високих температур отриманий вираз переходить у вже вiдомий. Результати можуть бути застосованi для аналiзу внескiв три- та чотиричастинкових кореляцiй у термодинамiчнi та структурнi функцiї рiдкого ⁴He. 2015 Article First sound velocity in liquid ⁴He / O.I. Hryhorchak // Condensed Matter Physics. — 2015. — Т. 18, № 4. — С. 43001: 1–7. — Бібліогр.: 33 назв. — англ. 1607-324X PACS: 05.30.Jp, 67.25.-k, 43.35.+d, 62.60.+v,67.25.dt DOI:10.5488/CMP.18.43001 arXiv:1512.07742 http://dspace.nbuv.gov.ua/handle/123456789/155264 en Condensed Matter Physics Інститут фізики конденсованих систем НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| description |
Based on the many-boson system structure factor, which takes into account three- and four-particle direct correlations, there was found the first sound velocity temperature behaviour in liquid ⁴He in the post-RPA approximation. The expression received for the sound velocity matches with the well-known results in both low and high temperature limits. The results of this paper can be used to analyze the contributions of three- and four-particle correlations into thermodynamic and structural features of liquid ⁴He . |
| format |
Article |
| author |
Hryhorchak, O.I. |
| spellingShingle |
Hryhorchak, O.I. First sound velocity in liquid ⁴He Condensed Matter Physics |
| author_facet |
Hryhorchak, O.I. |
| author_sort |
Hryhorchak, O.I. |
| title |
First sound velocity in liquid ⁴He |
| title_short |
First sound velocity in liquid ⁴He |
| title_full |
First sound velocity in liquid ⁴He |
| title_fullStr |
First sound velocity in liquid ⁴He |
| title_full_unstemmed |
First sound velocity in liquid ⁴He |
| title_sort |
first sound velocity in liquid ⁴he |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2015 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/155264 |
| citation_txt |
First sound velocity in liquid ⁴He / O.I. Hryhorchak // Condensed Matter Physics. — 2015. — Т. 18, № 4. — С. 43001: 1–7. — Бібліогр.: 33 назв. — англ. |
| series |
Condensed Matter Physics |
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AT hryhorchakoi firstsoundvelocityinliquid4he |
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2023-05-20T17:46:29Z |
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2023-05-20T17:46:29Z |
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