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Cosmological experiments in liquid He-4 : status and prospects.

Hendry, P. C. and Lawson, N. S. and Lee, R. A. M. and McClintock, Peter V. E. and Williams, C. 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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Abstract

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: 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
Subjects: Q Science > QC Physics
Departments: Faculty of Science and Technology > Physics
Faculty of Arts & Social Sciences > Politics & International Relations (Merged into PPR 2010-08-01)
Faculty of Health and Medicine > Health Research
ID Code: 32116
Deposited By: Professor P. V. E. McClintock
Deposited On: 09 Mar 2010 11:24
Refereed?: Yes
Published?: Published
Last Modified: 26 Jul 2012 17:05
Identification Number:
URI: http://eprints.lancs.ac.uk/id/eprint/32116

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