2011 Fiscal Year Final Research Report
Bubble nucleation in cryogenic Helium-Search for Acoustic Turbulence in Quantum Liquids-
| Project/Area Number |
22740201
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Condensed matter physics I
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| Research Institution | Osaka City University |
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Principal Investigator |
OBARA Ken 大阪市立大学, 大学院・理学研究科, 講師 (50347481)
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| Project Period (FY) |
2010 – 2011
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| Keywords | 表面 / 界面 / 気泡核生成 |
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| Research Abstract |
When we apply a large amplitude sound to ultra-pure quantum liquid, the unsteady non-linear response with anomalous absorption are found. We have developed the new technique to evaluate it quantitatively and revealed that this absorption is due to the nucleation of the bubble. In addition, we have observed the prelude of the acoustic turbulence. Further developments are expected from these results.
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