Current Dissipation in Thin Superconducting Wires: Accurate Numerical Evaluation Using the String Method
Superconductivity
2009-11-11 v1 Statistical Mechanics
Abstract
Current dissipation in thin superconducting wires is numerically evaluated by using the string method, within the framework of time-dependent Ginzburg-Landau equation with a Langevin noise term. The most probable transition pathway between two neighboring current-carrying metastable states, continuously linking the Langer-Ambegaokar saddle-point state to a state in which the order parameter vanishes somewhere, is found numerically. We also give a numerically accurate algorithm to evaluate the prefactors for the rate of current-reducing transitions.
Cite
@article{arxiv.cond-mat/0502656,
title = {Current Dissipation in Thin Superconducting Wires: Accurate Numerical Evaluation Using the String Method},
author = {Tiezheng Qian and Weiqing Ren and Ping Sheng},
journal= {arXiv preprint arXiv:cond-mat/0502656},
year = {2009}
}
Comments
25 pages, 5 figures