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Cosmological experiments in liquid helium

Research output: Contribution to Journal/MagazineJournal articlepeer-review

<mark>Journal publication date</mark>1999
<mark>Journal</mark>Nonlinear Phenomena in Complex Systems
Issue number4
Number of pages10
Pages (from-to)26-35
Publication StatusPublished
<mark>Original language</mark>English


Fast passage through a continuous phase transition is expected to result in the creation of topical defects via the Kibble mechanism. Recent experiments involving the expansion of a small volume of liquid He-4 through the lambda (superfluid) transition, as a model of the GUT (grand unified theory) symmetry-breaking transition of the early universe, are discussed and set in context. Copious creation of quantized vortices, analogous to cosmic strings, is expected but not observed. The possibility of developing a more sensitive version of the experiment is considered.