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Spontaneous Fluxon Formation in Annular Josephson Tunnel Junctions

Roberto Monaco·Jesper Mygind·Ray J. Rivers
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Abstract

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 +/- 0.05. Further, there is agreement with the ZK prediction for the overall normalisation.

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Roberto Monaco, Jesper Mygind, Ray J. Rivers. 2002-07-21. Spontaneous Fluxon Formation in Annular Josephson Tunnel Junctions. https://doi.org/10.1103/physrevb.67.104506

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