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arXiv 1109.4828cond-mat.other
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量子化涡旋产生的电场

Electric fields generated by quantized vortices

A. S. Rukin, S. I. Shevchenko

摘要:

结果表明,在磁场中,超流中的量子化涡旋获得了集中在涡旋核中的实量子化电荷。这种电荷由位于离涡轴宏观距离处的相反表面电荷补偿。确定了由涡旋速度场引起的极化不会在无限长圆柱外产生电场。由涡流产生的电场的观察仅在必须用电介质盖封闭以防止超流泄漏的圆柱体的端面附近是可能的。研究了覆盖物特性对涡产生的势的影响。计算了点电极和环电极上的涡旋产生的电势。

英文摘要:

It is shown that in a magnetic field quantized vortices in a superfluid obtain a real quantized electric charge concentrated in the vortex core. This charge is compensated by an opposite surface charge located at a macroscopic distance from the vortex axis. It is determined that the polarization caused by the vortex velocity field does not give rise to electric fields outside an infinite cylinder. Observation of electric fields created by the vortices is possible only near the end surfaces of the cylinder which must be closed with dielectric covers to prevent superfluid leaking. Influence of cover properties on the potential created by the vortex is researched. Potential created by the vortices on point and ring electrodes are calculated.

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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