The theory of kinetic processes in anisotropic phonon systems
We present a theoretical investigation of the kinetic properties of strongly anisotropic phonon systems. Such systems can be created in superfluid helium by heat pulses. The general expression for the rates of four-phonon processes are obtained. This expression shows that there is an asymmetry betwe...
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| Veröffentlicht in: | Вопросы атомной науки и техники |
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| Datum: | 2001 |
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| Format: | Artikel |
| Sprache: | Englisch |
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Національний науковий центр «Харківський фізико-технічний інститут» НАН України
2001
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| Online Zugang: | https://nasplib.isofts.kiev.ua/handle/123456789/80037 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | The theory of kinetic processes in anisotropic phonon systems / I.N. Adamenko, Y.A. Kitsenko, K.E. Nemchenko, A.F.G. Wyatt // Вопросы атомной науки и техники. — 2001. — № 6. — С. 301-305. — Бібліогр.: 8 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862545597878239232 |
|---|---|
| author | Adamenko, I.N. Kitsenko, Y.A. Nemchenko, K.E. Wyatt, A.F.G. |
| author_facet | Adamenko, I.N. Kitsenko, Y.A. Nemchenko, K.E. Wyatt, A.F.G. |
| citation_txt | The theory of kinetic processes in anisotropic phonon systems / I.N. Adamenko, Y.A. Kitsenko, K.E. Nemchenko, A.F.G. Wyatt // Вопросы атомной науки и техники. — 2001. — № 6. — С. 301-305. — Бібліогр.: 8 назв. — англ. |
| collection | DSpace DC |
| container_title | Вопросы атомной науки и техники |
| description | We present a theoretical investigation of the kinetic properties of strongly anisotropic phonon systems. Such systems can be created in superfluid helium by heat pulses. The general expression for the rates of four-phonon processes are obtained. This expression shows that there is an asymmetry between the creation and decay of the high-energy phonons in the anisotropic phonon systems. Solutions of this expression are then considered. The results presented in this work explain the phenomena which are observed in the anisotropic phonon systems and they will stimulate the conception of new experiments.
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| first_indexed | 2025-11-25T06:05:48Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-80037 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 1562-6016 |
| language | English |
| last_indexed | 2025-11-25T06:05:48Z |
| publishDate | 2001 |
| publisher | Національний науковий центр «Харківський фізико-технічний інститут» НАН України |
| record_format | dspace |
| spelling | Adamenko, I.N. Kitsenko, Y.A. Nemchenko, K.E. Wyatt, A.F.G. 2015-04-09T16:19:30Z 2015-04-09T16:19:30Z 2001 The theory of kinetic processes in anisotropic phonon systems / I.N. Adamenko, Y.A. Kitsenko, K.E. Nemchenko, A.F.G. Wyatt // Вопросы атомной науки и техники. — 2001. — № 6. — С. 301-305. — Бібліогр.: 8 назв. — англ. 1562-6016 PACS: 67.40.Db, 67.40.Fd, 67.90.+z https://nasplib.isofts.kiev.ua/handle/123456789/80037 We present a theoretical investigation of the kinetic properties of strongly anisotropic phonon systems. Such systems can be created in superfluid helium by heat pulses. The general expression for the rates of four-phonon processes are obtained. This expression shows that there is an asymmetry between the creation and decay of the high-energy phonons in the anisotropic phonon systems. Solutions of this expression are then considered. The results presented in this work explain the phenomena which are observed in the anisotropic phonon systems and they will stimulate the conception of new experiments. We express profound gratitude EPSRC (grants GR/N18796 and GR/N20225) UK, and also GFFI Ukraine (grant №02.07/000372) for the support which enables us to carry out our scientific program. en Національний науковий центр «Харківський фізико-технічний інститут» НАН України Вопросы атомной науки и техники Kinetic theory The theory of kinetic processes in anisotropic phonon systems Теория кинетических процессов в анизотропных фононных системах Article published earlier |
| spellingShingle | The theory of kinetic processes in anisotropic phonon systems Adamenko, I.N. Kitsenko, Y.A. Nemchenko, K.E. Wyatt, A.F.G. Kinetic theory |
| title | The theory of kinetic processes in anisotropic phonon systems |
| title_alt | Теория кинетических процессов в анизотропных фононных системах |
| title_full | The theory of kinetic processes in anisotropic phonon systems |
| title_fullStr | The theory of kinetic processes in anisotropic phonon systems |
| title_full_unstemmed | The theory of kinetic processes in anisotropic phonon systems |
| title_short | The theory of kinetic processes in anisotropic phonon systems |
| title_sort | theory of kinetic processes in anisotropic phonon systems |
| topic | Kinetic theory |
| topic_facet | Kinetic theory |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/80037 |
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