Creation of superfluid helium rotons by a solid’s phonons incident normal to the interface

• Published in: Вопросы атомной науки и техники
• Date: 2007
• Main Authors: Adamenko, I.N., Nemchenko, K.E, Tanatarov, I.V.
• Format: Article
• Language: English
• Published: Національний науковий центр «Харківський фізико-технічний інститут» НАН України 2007
• Subjects: Physics of quantum liquids
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/111060
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Creation of superfluid helium rotons by a solid’s phonons incident normal to the interface / I.N. Adamenko, K.E Nemchenko, I.V. Tanatarov // Вопросы атомной науки и техники. — 2007. — № 3. — С. 404-409. — Бібліогр.: 8 назв. — англ.

We solve the one-dimensional problem of quasiparticles’ transfer through the interface between a solid and superfluid helium. Superfluid helium is treated as a continuous medium with correlations. When a solid’s phonon is incident on the interface, phonons, R⁻ and R⁺rotons are created in helium, and...