Four and three-phonon scattering in isotropic superfluid helium
We analyse the important role of four-phonon processes (4pp) in isotropic phonon systems of superfluid helium. The matrix elements and the rate of four-phonon processes are calculated. Special consideration is given to the 4pp in the momentum range where three-phonon processes are allowed. In this m...
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| Published in: | Физика низких температур |
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| Date: | 2009 |
| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Published: |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2009
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| Subjects: | |
| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/116992 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Four and three-phonon scattering in isotropic superfluid helium / I.N. Adamenko, Yu.A. Kitsenko, K.E. Nemchenko, A.F.G. Wyatt // Физика низких температур. — 2009. — Т. 35, № 3. — С. 265-277. — Бібліогр.: 26 назв. — англ. |