Phase transitions create a domain structure with defects, which has been argued by Zurek and Kibble (ZK) to depend in a characteristic way on the quench rate. We present an experiment to measure the ZK scaling exponent sigma. Using long symmetric Josephson tunnel junctions, for which the predicted index is sigma=0.25, we find sigma=0.27+/-0.05. Further, we agree with the ZK prediction for the overall normalization.
Bibliographical noteCopyright (2002) American Physical Society
- COSMIC STRINGS
- LOCAL GAUGE-INVARIANCE
- SUPERFLUID HE-3
- TOPOLOGICAL DEFECTS
- COSMOLOGICAL EXPERIMENTS
Monaco, R., Mygind, J., & Rivers, R. J. (2002). Zurek-Kibble domain structures: The dynamics of spontaneous vortex formation in annular Josephson tunnel junctions. Physical Review Letters, 89(8), 080603. https://doi.org/10.1103/PhysRevLett.89.080603