On the suprathermal distribution in an anisotropic phonon system in He II
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
On the suprathermal distribution in an anisotropic phonon system in He II
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| Creator |
Adamenko, I.N.
Nemchenko, K.E. G.Wyatt, A.F. |
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| Subject |
Квантовые жидкости и квантовые кpисталлы
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| Description |
The equation that describes the suprathermal distribution of high-energy phonons (h phonons) created in anisotropic phonon systems in superfluid helium is obtained. The solution of this equation enables the derivation of the value of suprathermal ratio S as the ratio of the actual distribution to the Bose-Einstein one, its dependences on the momentum of the h phonons, the anisotropy parameters, and the temperature of the low-energy phonons from which the h phonons are created. We analyze this equation to obtain an estimate of the value of the ratio between the h-phonon number density in anisotropic and isotropic phonon systems and draw conclusions about the dependence of S on the relevant parameters.
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| Date |
2018-01-13T19:49:20Z
2018-01-13T19:49:20Z 2003 |
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| Type |
Article
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| Identifier |
On the suprathermal distribution in an anisotropic phonon system in He II / I.N. Adamenko, K.E. Nemchenko, A.F. G. Wyatt // Физика низких температур. — 2003. — Т. 29, № 1. — С. 16-21. — Бібліогр.: 28 назв. — англ.
0132-6414 PACS: 67.40.Db, 67.40.Fd http://dspace.nbuv.gov.ua/handle/123456789/128779 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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