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arXiv 0907.1000math.AP
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边界流驱动的Ginzburg-Landau涡旋动力学

Ginzburg-Landau vortex dynamics driven by an applied boundary current

Ian Tice

摘要:

本文研究了光滑有界区域$Ω\subset \Rn{2}$上的含时Ginzburg-Landau方程,其中在边界上施加电流.与施加电流的动力学是非耗散的,但通过识别一个特殊的结构中的相互作用能,我们能够得到一个精确的上界的能量增长。然后,我们转向研究的极限$\ep \to 0$的解决方案的旋涡的动力学。我们首先考虑原始的时间尺度,在这个时间尺度中,涡旋不运动,解经历一个“相位松弛”。“然后,我们研究一个加速的时间尺度,在这个时间尺度中,旋涡根据一个推导出的动力学定律运动。在动力学定律中,我们确定了一个新的洛伦兹力项所施加的边界电流。

英文摘要:

In this paper we study the time-dependent Ginzburg-Landau equations on a smooth, bounded domain $Ω\subset \Rn{2}$, subject to an electrical current applied on the boundary. The dynamics with an applied current are non-dissipative, but via the identification of a special structure in an interaction energy, we are able to derive a precise upper bound for the energy growth. We then turn to the study of the dynamics of the vortices of the solutions in the limit $\ep \to 0$. We first consider the original time scale, in which the vortices do not move and the solutions undergo a "phase relaxation." Then we study an accelerated time scale in which the vortices move according to a derived dynamical law. In the dynamical law, we identify a novel Lorentz force term induced by the applied boundary current.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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