Multiple quantum phase slips in superfluid4He

Autor:	S. Burkhart, M. Bernard, Eric Varoquaux, O. Avenel
Rok vydání:	1995
Předmět:	Physics Condensed matter physics Phase (waves) Tourbillon Condensed Matter Physics Atomic and Molecular Physics and Optics Vortex Physics::Fluid Dynamics Superfluidity Quantization (physics) Helium-4 General Materials Science Choked flow Body orifice
Zdroj:	Journal of Low Temperature Physics. 101:821-826
ISSN:	1573-7357 0022-2291
DOI:	10.1007/bf00753397
Popis:	Phase slips by 2π in the critical flow of superfluid 4He through an orifice have been known to exist for some time. Besides these small, regular events, large and precipitous drops of the velocity which may cause up to a full collapse of the flow through the orifice have been observed by a number of authors. We have found that collapses are robust and repeatable features during the same cool-down and correspond to events involving n quantized vortices. They depend on temperature, pressure, 3He content and resonator drive level. At a given pressure, their appearance is governed solely by the magnitude of the superfluid velocity vs.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::309548bf238933367827fc0be4e1612b https://doi.org/10.1007/bf00753397 Zobrazit plný text záznamu Full text from SpringerLink