A new ripplon branch in He II

dc.contributor.author	Tanatarov, I.V.
dc.contributor.author	Adamenko, I.N.
dc.contributor.author	Nemchenko, K.E.
dc.contributor.author	Wyatt, A.F.G.
dc.date.accessioned	2017-05-22T15:39:52Z
dc.date.available	2017-05-22T15:39:52Z
dc.date.issued	2010
dc.identifier.citation	A new ripplon branch in He II / I.V. Tanatarov, I.N. Adamenko, K.E. Nemchenko, A.F.G. Wyatt // Физика низких температур. — 2010. — Т. 36, № 7. — С. 731–739. — Бібліогр.: 25 назв. — англ.	uk_UA
dc.identifier.issn	0132-6414
dc.identifier.other	PACS: 67.25.dg, 47.37.+q
dc.identifier.uri	http://dspace.nbuv.gov.ua/handle/123456789/117361
dc.description.abstract	We analyse the dispersion relation of ripplons, on the surface of superfluid helium, using the dispersive hydrodynamics approach and find a new ripplon branch. We obtain analytical equation for the dispersion relation and analytic expressions for the limiting cases. The probabilities of decay of unstable ripplons above the roton gap into rotons are derived. A numerical solution for the ripplon dispersion curve is obtained. The new ripplon branch is found at energies just below the instability point of the bulk spectrum, and is investigated; its stability is discussed.	uk_UA
dc.language.iso	en	uk_UA
dc.publisher	Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України	uk_UA
dc.relation.ispartof	Физика низких температур
dc.subject	Квантовые жидкости и квантовые кpисталлы	uk_UA
dc.title	A new ripplon branch in He II	uk_UA
dc.type	Article	uk_UA
dc.status	published earlier	uk_UA