Cosmological experiments in liquid He-4:status and prospects

Hendry, P. C. and Lawson, N. Stuart and Lee, Richard A. M. and McClintock, Peter V. E. and Williams, Charles D. H. (1995) Cosmological experiments in liquid He-4:status and prospects. Physica B: Condensed Matter, 210 (3-4). pp. 209-214. ISSN 0921-4526

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A recent experiment, in which a small volume of liquid 4He is expanded rapidly through the lambda transition to model the mechanism of cosmic string creation in the early universe, is reviewed. New data are presented, suggesting that, although most of the quantized vortices generated in the expansion are created (like cosmic strings) by passage through the phase transition at a finite speed, a proportion of them are probably produced through more conventional processes. Possible ways of redesigning the experiment, so as to reduce the latter extraneous vortex creation processes, are discussed.

Item Type:
Journal Article
Journal or Publication Title:
Physica B: Condensed Matter
Additional Information:
Proceedings of the Symposium on Vortices, Interfaces and Mesoscopic Phenomena in Quantum Systems, Jyvaskyla, Finland, 4-9 June 1005
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Deposited On:
09 Mar 2010 11:24
Last Modified:
21 Nov 2022 19:48