Flux Noise near the Berezinskii-Kosterlitz-Thouless Transition
Superconductivity
2008-02-03 v2 Statistical Mechanics
Abstract
We study the flux noise in Josephson junction arrays in the critical regime above the Berezinskii-Kosterlitz-Thouless transition. In proximity coupled arrays a local ohmic damping for the phases is relevant, giving rise to anomalous vortex diffusion and a dynamic scaling of the flux noise in the critical region. It shows a crossover from white to -noise at a frequency with a dynamic exponent .
Keywords
Cite
@article{arxiv.cond-mat/9611177,
title = {Flux Noise near the Berezinskii-Kosterlitz-Thouless Transition},
author = {Karl-Heinz Wagenblast and Rosario Fazio},
journal= {arXiv preprint arXiv:cond-mat/9611177},
year = {2008}
}
Comments
Revised version to be published in JETP Letters