Defect formation in inhomogeneous 2-nd order phase transition: theory and experiment

Details Defect formation in inhomogeneous 2-nd order phase transition: theory and experiment Defect formation in inhomogeneous 2-nd order phase transition: theory and experiment

1999-05-21

arxiv.org/abs/cond-mat/9905320v3

Physica B280:122-127,2000

Physics

Condensed Matter

6 pages, 5 figures (modified), invited talk at LT-22 (August 1999), modified after referee report, references are added

Scientific paper

10.1016/S0921-4526(99)01512-4

The status quo in our understanding of defect formation during a rapid transition into the broken symmetry state in condensed matter and cosmology is discussed. An observation of vortex nucleation in neutron absorption experiments in superfluid 3He-B is interpreted in terms of defect formation during inhomogeneous cooling through T_c. Due to the temperature gradient in the locally heated region the superfluid phase transition occurs as a propagating front. The theoretical considerations of vortex formation at the propagating front are based on work by Kibble-Volovik, Kopnin-Thuneberg, and Aranson-Kopnin-Vinokur.

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