Explosion of electron bubbles attached to quantized vortices in liquid He4

Electron bubbles in superfluid He4 have been recently observed in low-temperature cavitation measurements under experimental conditions where quantized vortices are also present in the liquid, and which might be attached to the bubbles. We have calculated, within density functional theory, the struc...

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Bibliographic Details
Published in:The Journal of chemical physics 2007-06, Vol.126 (24)
Main Authors: Pi, Martí, Mayol, Ricardo, Hernando, Alberto, Barranco, Manuel, Ancilotto, Francesco
Format: Article
Language:English
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Summary:Electron bubbles in superfluid He4 have been recently observed in low-temperature cavitation measurements under experimental conditions where quantized vortices are also present in the liquid, and which might be attached to the bubbles. We have calculated, within density functional theory, the structure and energetics of electron bubbles pinned to linear vortices in liquid He4 at low temperature, and the pressure at which such structures become mechanically unstable. Our results are in semiquantitative agreement with the experiments. We discuss dynamical effects not included in the theoretical model used in the present calculations, and which could explain some discrepancies between our results and the experimental data.
ISSN:0021-9606
1089-7690
DOI:10.1063/1.2745297