Collapse of Vapor-Filled Multielectron Bubbles Held Against a Surface

Rath, PK and Huang, Y and Ghosh, A (2020) Collapse of Vapor-Filled Multielectron Bubbles Held Against a Surface. In: Journal of Low Temperature Physics .

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Abstract

Multielectron bubbles (MEBs) are cavities in liquid helium containing a layer of electrons pinned to the inner surface of the bubbles. Previous experimental work carried out with MEBs in bulk helium-4 above the lambda point showed MEBs can contain vapor, which condenses in a time approximately proportional to the volume of the bubble, and this observation was further confirmed by numerical simulations. In the present work, we describe experiments where the MEBs are held against a solid substrate. We found the rate of vapor condensation and therefore the speed of collapse of the bubble to be orders of magnitude faster compared to MEBs in bulk. We discuss a numerical model and the associated difficulties to explain this difference.

Item Type:	Journal Article
Publication:	Journal of Low Temperature Physics
Publisher:	Springer
Additional Information:	Copyright of this article belongs to Springer
Keywords:	Helium; Numerical models; Superfluid helium, Inner surfaces; Lambda point; Lifetime; Liquid helium; Multielectron bubbles; Orders of magnitude; Solid substrates; Vapor condensation, Liquefied gases
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	16 Jun 2020 09:09
Last Modified:	16 Jun 2020 09:09
URI:	http://eprints.iisc.ac.in/id/eprint/64593

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