|
Title
|
|
|
|
Novel methods to create multielectron bubbles in superfluid helium
| |
|
Author
|
|
|
|
| |
|
Abstract
|
|
|
|
| An equilibrium multielectron bubble (MEB) in liquid helium is a fascinating object with a spherical two-dimensional electron gas on its surface. We discuss two ways in which they have been created. For MEBs that have been observed in the dome of a cylindrical cell with an unexpectedly short lifetime, we show analytically why these MEBs can discharge by tunneling. Using a novel method, MEBs have been extracted from a vapor sheath around a hot filament in superfluid helium by applying electric fields up to 15 kV/cm, and photographed with high-speed video. Charges as high as 1.6×10−9 C (∼1010 electrons) have been measured. The latter method provides a means of capture in an electromagnetic trap to allow the study of the extensive exciting properties of these elusive objects. |
| |
|
Language
|
|
|
|
English
| |
|
Source (journal)
|
|
|
|
The review of scientific instruments. - New York, N.Y.
| |
|
Publication
|
|
|
|
New York, N.Y.
:
2011
| |
|
ISSN
|
|
|
|
0034-6748
| |
|
DOI
|
|
|
|
10.1063/1.3553030
| |
|
Volume/pages
|
|
|
|
82
:3
(2011)
, p. 033904,1-033904,7
| |
|
Article Reference
|
|
|
|
033904
| |
|
ISI
|
|
|
|
000289149600051
| |
|
Medium
|
|
|
|
E-only publicatie
| |
|
Full text (Publisher's DOI)
|
|
|
|
| |
|