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arXiv 2001.04330nlin.PS
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自治振子链中的孤波

Solitary phase waves in a chain of autonomous oscillators

Philip Rosenau, Arkady Pikovsky

摘要:

本文研究无限晶格上具有最近邻色散耦合的自持振子的相波。为了分析潜在的动力学,我们用准连续体QC近似晶格。由此产生的偏微分模型,然后进一步减少到加德纳方程预测的许多属性的基础孤立结构。使用迭代程序的原始晶格方程,我们确定的形状孤立波,扭结,和平坦的孤子,我们称之为flatons。直接数值实验表明,孤子和晶格上的平子的相互作用是显着干净。总之,我们发现QC和Gardner方程都能很好地预测离散模式及其动力学。

英文摘要:

In the present paper we study phase waves of self-sustained oscillators with a nearest neighbor dispersive coupling on an infinite lattice. To analyze the underlying dynamics we approximate the lattice with a quasi-continuum, QC. The resulting partial differential model is then further reduced to the Gardner equation which predicts many properties of the underlying solitary structures. Using an iterative procedure on the original lattice equations we determine the shapes of solitary waves, kinks, and the flat-like solitons, that we refer to as flatons. Direct numerical experiments reveal that the interaction of solitons and flatons on the lattice is notably clean. All in all we find that both the QC and the Gardner equation predict remarkably well the discrete patterns and their dynamics.

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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