论文标题

开尔文波级联中的波浪振幅

Amplitude of waves in the Kelvin-wave cascade

论文作者

Eltsov, V. B., L'vov, V. S.

论文摘要

开发研究超流动动力学的实验技术,特别是纳米力学振荡器在驱动涡流线上的应用,可以潜在地观察到量化的涡旋上的开尔文波级联。当时在实验结果分析时出现的第一个问题之一是级联中的能量通量与开尔文波的振幅之间的关系。我们根据Cascade的L'Vov-Nazarenko图片提供了这种关系。值得注意的是,波的幅度取决于能量通量弱弱,因为功率十分之一。

Development of experimental techniques to study superfluid dynamics, in particular, application of nanomechanical oscillators to drive vortex lines, enables potential observation of the Kelvin-wave cascade on quantized vortices. One of the first questions which then arises in analysis of the experimental results is the relation between the energy flux in the cascade and the amplitude of the Kelvin waves. We provide such relation based on the L'vov-Nazarenko picture of the cascade. Remarkably, the amplitude of the waves depends on the energy flux extermely weakly, as power one tenth.

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