Title:
Current Dissipation in Thin Superconducting Wires:
Numerical Evaluation Using the String Method

Abstract:
Current dissipation in thin superconducting wires is
numerically studied using the string method developed recently
by E, Ren and Vanden-Eijnden. The system is modeled by time-dependent
Ginzburg-Landau equation with a Langevin noise. The most
probable transition pathways between neighboring current-carrying
metastable states are found numerically, and the prefactors for
the transition rates are calculated using thermal dynamical integration.
In this talk, we will discuss the details of the numerical method
and the numerical results.

This a joint work with Tiezheng Qian and Ping Sheng.