Quench Induced Vortices in the Symmetry Broken Phase of Liquid $^4$He

Details Quench Induced Vortices in the Symmetry Broken Phase of Liquid $^4$He Quench Induced Vortices in the Symmetry Broken Phase of Liquid $^4$He

1996-03-07

arxiv.org/abs/cond-mat/9603050v1

Physics

Condensed Matter

29 pages, RevTeX with one EPS figure

Scientific paper

10.1088/0305-4470/29/14/044

Motivated by the study of cosmological phase transitions, our understanding of the formation of topological defects during spontaneous symmetry-breaking and the associated non-equilibrium field theory has recently changed. Experiments have been performed in superfluid $^4$He to test the new ideas involved. In particular, it has been observed that a vortex density is seen immediately after pressure quenches from just below the $\lambda$ transition. We discuss possible interpretations of these vortices, conclude they are consistent with our ideas of vortex formation and propose a modification of the original experiments.

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