Interaction of phonons at superfluid helium - solid interfaces
New method to obtain the interaction Hamiltonian of phonons at superfluid helium - solid interface is proposed in the work. Equations of hydrodynamic variables are obtained in terms of second quantization if helium occupies a half-space. The contributions of all processes to the heat flux from solid...
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| Дата: | 2014 |
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| Автори: | , |
| Формат: | Стаття |
| Мова: | English |
| Опубліковано: |
Інститут фізики конденсованих систем НАН України
2014
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| Назва видання: | Condensed Matter Physics |
| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/153482 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Interaction of phonons at superfluid helium-solid interfaces / I.N. Adamenko, E.K. Nemchenko // Condensed Matter Physics. — 2014. — Т. 17, № 1. — С. 13602:1-9. — Бібліогр.: 20 назв. — англ. |
Репозитарії
Digital Library of Periodicals of National Academy of Sciences of Ukraine| id |
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irk-123456789-1534822019-06-22T18:29:09Z Interaction of phonons at superfluid helium - solid interfaces Adamenko, I.N. Nemchenko, E.K. New method to obtain the interaction Hamiltonian of phonons at superfluid helium - solid interface is proposed in the work. Equations of hydrodynamic variables are obtained in terms of second quantization if helium occupies a half-space. The contributions of all processes to the heat flux from solid to superfluid helium are calculated based on obtained Hamiltonian. The angular distribution of phonons that are emitted by solid are found in different processes. It is shown, that all of exit angles of superfuild helium phonons are allowed. The obtained results are compared with experimental data and with previous theoretical works. У роботi запропоновано новий метод отримання гамiльтонiана взаємодiї фононiв на поверхнi роздiлу тверде тiло-надплинний гелiй. Отримано вирази для збурень гiдродинамiчних змiнних у термiнах вторинного квантування у випадку, якщо рiдина займає напiвпростiр. На основi отриманого гамiльтонiана обчислено вклади вiд усiх процесiв у потiк тепла з нагрiтого твердого тiла у надплинний гелiй. Отримано кутовi розподiли випромiнених твердим тiлом фононiв у рiзних процесах. Показано, що у випадку непружних процесiв немає заборон на кути вильоту фононiв у надплинний гелiй. Отриманi результати порiвнюються з результатами експериментальних та теоретичних робiт. 2014 Article Interaction of phonons at superfluid helium-solid interfaces / I.N. Adamenko, E.K. Nemchenko // Condensed Matter Physics. — 2014. — Т. 17, № 1. — С. 13602:1-9. — Бібліогр.: 20 назв. — англ. 1607-324X PACS: 67.25.dt arXiv:1403.5068 DOI:10.5488/CMP.17.13602 http://dspace.nbuv.gov.ua/handle/123456789/153482 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 |
New method to obtain the interaction Hamiltonian of phonons at superfluid helium - solid interface is proposed in the work. Equations of hydrodynamic variables are obtained in terms of second quantization if helium occupies a half-space. The contributions of all processes to the heat flux from solid to superfluid helium are calculated based on obtained Hamiltonian. The angular distribution of phonons that are emitted by solid are found in different processes. It is shown, that all of exit angles of superfuild helium phonons are allowed. The obtained results are compared with experimental data and with previous theoretical works. |
| format |
Article |
| author |
Adamenko, I.N. Nemchenko, E.K. |
| spellingShingle |
Adamenko, I.N. Nemchenko, E.K. Interaction of phonons at superfluid helium - solid interfaces Condensed Matter Physics |
| author_facet |
Adamenko, I.N. Nemchenko, E.K. |
| author_sort |
Adamenko, I.N. |
| title |
Interaction of phonons at superfluid helium - solid interfaces |
| title_short |
Interaction of phonons at superfluid helium - solid interfaces |
| title_full |
Interaction of phonons at superfluid helium - solid interfaces |
| title_fullStr |
Interaction of phonons at superfluid helium - solid interfaces |
| title_full_unstemmed |
Interaction of phonons at superfluid helium - solid interfaces |
| title_sort |
interaction of phonons at superfluid helium - solid interfaces |
| publisher |
Інститут фізики конденсованих систем НАН України |
| publishDate |
2014 |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/153482 |
| citation_txt |
Interaction of phonons at superfluid helium-solid interfaces / I.N. Adamenko, E.K. Nemchenko // Condensed Matter Physics. — 2014. — Т. 17, № 1. — С. 13602:1-9. — Бібліогр.: 20 назв. — англ. |
| series |
Condensed Matter Physics |
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AT adamenkoin interactionofphononsatsuperfluidheliumsolidinterfaces AT nemchenkoek interactionofphononsatsuperfluidheliumsolidinterfaces |
| first_indexed |
2023-05-20T17:38:32Z |
| last_indexed |
2023-05-20T17:38:32Z |
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1796153760216514560 |