平行传播Alfven波调制不稳定性中相位与频率的非线性关系的注记
Remarks on nonlinear relation among phases and frequencies in modulational instabilities of parallel propagating Alfven waves
摘要：
在一维无耗散无强迫流体系统中，讨论了圆偏振Alfven波调制不稳定性中频率和相位之间的非线性关系。我们表明，相位相干的产生是阿尔芬波的调制不稳定性的自然后果。此外，我们定量评估的强度波波相互作用的双相干，也通过计算波模式之间的能量流，并证明了能量流是直接相关的相位相干的产生。
英文摘要：
Nonlinear relations among frequencies and phases in modulational instability of circularly polarized Alfven waves are discussed, within the context of one dimensional, dissipation-less, unforced fluid system. We show that generation of phase coherence is a natural consequence of the modulational instability of Alfven waves. Furthermore, we quantitatively evaluate intensity of wave-wave interaction by using bi-coherence, and also by computing energy flow among wave modes, and demonstrate that the energy flow is directly related to the phase coherence generation.
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