Dimensional Crossover by a Local Inhomogeneity in Soliton-Pair Nucleation
Superconductivity
2009-10-31 v2 Mesoscale and Nanoscale Physics
Abstract
Soliton-pair nucleation rates Gamma = A exp(-B) are studied in highly-biased sine-Gordon systems with a local inhomogeneity for both a thermal activation regime and a quantum tunneling regime. It is found that the local inhomogeneity strongly affects the nucleation rates by modifying the bias-dependence of the exponent B. This change in the exponent B is explained as a dimensional crossover caused by the local inhomogeneity. It is also shown that there is another crossover, at which A becomes independent of the system size.
Keywords
Cite
@article{arxiv.cond-mat/0003476,
title = {Dimensional Crossover by a Local Inhomogeneity in Soliton-Pair Nucleation},
author = {Takeo Kato},
journal= {arXiv preprint arXiv:cond-mat/0003476},
year = {2009}
}
Comments
5 pages including 3 figures and 1 table, submitted to J. Phys. Soc. Jpn