A Fast Semi-Implicit Finite-Difference Method for the TDGL Equations

A Fast Semi-Implicit Finite-Difference Method for the TDGL Equations
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DOI:
10.1006/jcph.2002.7047
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发表时间:
2001-06
影响因子:
4.1
通讯作者:
T. Winiecki;C. Adams
T. Winiecki;C. Adams
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
T. Winiecki;C. Adams

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摘要本文提出了一种求解含时Ginzburg-Landau(TDGL)方程和相应的麦克斯韦方程的有限差分算法。使用二阶半隐式格式离散时间导数,对于Ginzburg-Landau参数κ的中间值,该格式允许时间步长比显式格式中常用的大两个数量级。我们证明了使用的方法,通过解决一个完全三维的问题,载流导线的纵向和横向磁场。
Abstract We propose a finite-difference algorithm for solving the time-dependent Ginzburg–Landau (TDGL) equation coupled to the appropriate Maxwell equation. The time derivatives are discretized using a second-order semi-implicit scheme which, for intermediate values of the Ginzburg–Landau parameter κ, allows time steps two orders of magnitude larger than commonly used in explicit schemes. We demonstrate the use of the method by solving a fully three-dimensional problem of a current-carrying wire with longitudinal and transverse magnetic fields.