Evolution of a pulse of noninteracting quasiparticles with dispersion and initial angular width

• Published in: Физика низких температур
• Date: 2004
• Main Authors: Adamenko, I.N., Nemchenko, K.E., Slipko, V.A., Wyatt, A.F.G.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2004
• Subjects: Квантовые жидкости и квантовые кpисталлы
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/119730
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Evolution of a pulse of noninteracting quasiparticles with dispersion and initial angular width / I.N. Adamenko, K.E. Nemchenko, V.A. Slipko, and A.F.G. Wyatt // Физика низких температур. — 2004. — Т. 30, № 6. — С. 579-589. — Бібліогр.: 20 назв. — англ.

The evolution of a pulse of noninteracting quasiparticles, caused by their different velocities and angular distribution of momenta, is studied theoretically. Equations are found that describe the shape of the pulse surface at any time. The time of the beginning, end and duration of the density o...