About: Crosstalk Between Quartz Tuning Forks in Superfluid He II

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An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
rdfs:seeAlso	http://dx.doi.org/10.1007/s10909-012-0807-0
Description	We present experimental results on crosstalk of non-electrical origin between high frequency quartz tuning forks immersed in the same volume of helium gas, liquid or superfluid. We compare these results with various observations of other groups and propose an explanation of this puzzling phenomenon. To the best of our knowledge, notable crosstalk has only been observed in superfluid helium both in the two-fluid regime and at very low temperatures, but was rarely seen to behave in a systematic way. We demonstrate some of its most significant properties-amplitude dependence within a short time span, long-term temporal instability, effects of the geometry of the setup and of obstacles placed between the tuning forks. Although the results are not fully understood, as the most likely explanation, we ascribe the observations to the coupling of tuning forks to standing acoustic modes inside the experimental volume, emphasizing the importance of second sound for understanding the observations at temperatures within the two-fluid regime (1 K < T < 2.17 K). Finally, we suggest simple precautions leading to suppression of excessive acoustic crosstalk between oscillating objects in He II. We present experimental results on crosstalk of non-electrical origin between high frequency quartz tuning forks immersed in the same volume of helium gas, liquid or superfluid. We compare these results with various observations of other groups and propose an explanation of this puzzling phenomenon. To the best of our knowledge, notable crosstalk has only been observed in superfluid helium both in the two-fluid regime and at very low temperatures, but was rarely seen to behave in a systematic way. We demonstrate some of its most significant properties-amplitude dependence within a short time span, long-term temporal instability, effects of the geometry of the setup and of obstacles placed between the tuning forks. Although the results are not fully understood, as the most likely explanation, we ascribe the observations to the coupling of tuning forks to standing acoustic modes inside the experimental volume, emphasizing the importance of second sound for understanding the observations at temperatures within the two-fluid regime (1 K < T < 2.17 K). Finally, we suggest simple precautions leading to suppression of excessive acoustic crosstalk between oscillating objects in He II. (en)
Title	Crosstalk Between Quartz Tuning Forks in Superfluid He II Crosstalk Between Quartz Tuning Forks in Superfluid He II (en)
skos:prefLabel	Crosstalk Between Quartz Tuning Forks in Superfluid He II Crosstalk Between Quartz Tuning Forks in Superfluid He II (en)
skos:notation	RIV/00216208:11320/13:10173231!RIV14-GA0-11320___
http://linked.open...avai/predkladatel	Matematicko-fyzikální fakulta
http://linked.open...avai/riv/aktivita	I P
http://linked.open...avai/riv/aktivity	I, P(GA202/08/0276)
http://linked.open...iv/cisloPeriodika	3-4
http://linked.open...vai/riv/dodaniDat	2014
http://linked.open...aciTvurceVysledku	Skrbek, Ladislav Schmoranzer, David La Mantia, Marco
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Univerzita Karlova v Praze / Matematicko-fyzikální fakulta
http://linked.open...dnocenehoVysledku	67355
http://linked.open...ai/riv/idVysledku	RIV/00216208:11320/13:10173231
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	Sound modes; Crosstalk; Superfluid helium; Quartz tuning forks (en)
http://linked.open.../riv/klicoveSlovo	Quartz tuning forks Sound modes Superfluid helium Crosstalk
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[C04C6B658034]
http://linked.open...i/riv/nazevZdroje	Journal of Low Temperature Physics
http://linked.open...in/vavai/riv/obor	BK
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Selected problems of cryogenic fluid dynamics
http://linked.open...UplatneniVysledku	2013
http://linked.open...v/svazekPeriodika	171
http://linked.open...iv/tvurceVysledku	La Mantia, Marco Schmoranzer, David Skrbek, Ladislav
http://linked.open...ain/vavai/riv/wos	000316821600012
issn	0022-2291
number of pages	8 (xsd:int)
http://bibframe.org/vocab/doi	10.1007/s10909-012-0807-0
http://localhost/t...ganizacniJednotka	11320

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