Scaling Laws for Fluxon Formation in Annular Josephson Tunnel Junctions

Details Scaling Laws for Fluxon Formation in Annular Josephson Tunnel Junctions Scaling Laws for Fluxon Formation in Annular Josephson Tunnel Junctions

2003-01-16

arxiv.org/abs/cond-mat/0301294v1

Physics

Condensed Matter

Superconductivity

10 pages, 5 figures: To be published in Patterns of Symmetry Breaking (Ed. Jacek Dziarmaga), Proceedings of the NATO Advanced

Scientific paper

It has been argued by Zurek and Kibble that the likelihood of producing defects in a continuous phase transition depends in a characteristic way on the quench rate. In this paper we discuss our experiment for measuring the Zurek-Kibble scaling exponent $\sigma $ for the production of fluxons in annular symmetric Josephson Tunnel Junctions. The predicted exponent is $% \sigma =0.25$, and we find $\sigma =0.27\pm 0.05$. Further, there is agreement with the ZK prediction for the overall normalisation.

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