Observation of acoustic turbulence in a system of nonlinear second sound waves in superfluid ⁴He

dc.contributor.author	Ganshin, A.N.
dc.contributor.author	Efimov, V.B.
dc.contributor.author	Kolmakov, G.V.
dc.contributor.author	McClintock, P.V.E.
dc.contributor.author	Mezhov-Deglin, L.P.
dc.date.accessioned	2017-05-18T10:34:33Z
dc.date.available	2017-05-18T10:34:33Z
dc.date.issued	2008
dc.identifier.citation	Observation of acoustic turbulence in a system of nonlinear second sound waves in superfluid ⁴He / A.N. Ganshin, V.B. Efimov, G.V. Kolmakov, P.V.E. McClintock, L.P. Mezhov-Deglin // Физика низких температур. — 2008. — Т. 34, № 4-5. — С. 367–372. — Бібліогр.: 24 назв. — англ.	uk_UA
dc.identifier.issn	0132-6414
dc.identifier.other	PACS: 67.25.dg;67.25.dt;47.27.Cn;05.20.Dd
dc.identifier.uri	http://dspace.nbuv.gov.ua/handle/123456789/116917
dc.description.abstract	We discuss the results of recent studies of acoustic turbulence in a system of nonlinear second sound waves in a high-quality resonator filled with superfluid ⁴He. It was found that, when the driving amplitude was sufficiently increased, a steady-state direct wave cascade is formed involving a flux of energy towards high frequencies. The wave amplitude distribution follows a power law over a wide range of frequencies. Development of a decay instability at high driving amplitudes results in the formation of subharmonics of the driving frequency, and to a backflow of energy towards the low-frequency spectral domain, in addition to the direct cascade.	uk_UA
dc.description.sponsorship	The investigations were supported by the Russian Foundation for Basic Research, project Nos. 06-02-17253 and 07-02-00728, by the Presidium of the Russian Academy of Sciences in frames of the programs «Quantum Macrophysics» and «Mathematical Methods in Nonlinear Dynamics», and by the Engineering and Physical Sciences Research Council (UK).	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	Жидкий гелий	uk_UA
dc.title	Observation of acoustic turbulence in a system of nonlinear second sound waves in superfluid ⁴He	uk_UA
dc.type	Article	uk_UA
dc.status	published earlier	uk_UA