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Cosmological experiments in liquid He-4 - problems and prospects.

Research output: Contribution in Book/Report/ProceedingsChapter

Published

Publication date1995
Host publicationFormation and Interactions of Topological Defects
EditorsA. C. Davis, R. Brandenberger
Place of publicationNew York
PublisherPlenum
Pages379-387
Number of pages9
ISBN (Print)0-306-45116-6
Original languageEnglish

Abstract

A recent experiment, in which the production of cosmic strings in the early universe is modelled by the creation of quantised vortices in a fast expansion of liquid 4He through the lambda (superfluid) transition, is reviewed. Possible ways of redesigning the experiment to reduce extraneous vortex creation, and to enhance the signal-to-noise ratio at early times after the expansion, are discussed.

Bibliographic note

In Proceedings of the NATO Advanced Study Institute on Formation and Interactions of Topological Defects, Cambridge, 22 August - 2 September 1994.