Rigorous and generalized derivation of vortex line dynamics in superfluids and superconductors

被引:10
|
作者
Lin, TC
机构
[1] Department of Mathematics, Chung-Cheng University, Minghsiung
关键词
dynamics; Ginzburg Landau; superfluid; superconductor; vortex line;
D O I
10.1137/S0036139998341886
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We prove rigorously the asymptotic motion equation of a vortex line in a superconductor and a superfluid at small coherence length. In superconductors, the leading order term of the motion equation of a vortex line is dominated by the curvature and the normal direction of the vortex line. In superfluids, the leading order term of the motion equation of a vortex line is determined by the curvature and the binormal direction of the vortex line. Fortunately, the motion equation of a vortex line in a superfluid has the same leading order term as the motion equation of a vortex line in an incompressible fluid at high Reynolds numbers as epsilon = (Reynoldsnumber) -1/2. The method of our proof is more rigorous and generalized than the formal asymptotic analysis in the dynamics of fluid dynamic vortices.
引用
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页码:1099 / 1110
页数:12
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