Nonlinear self-dual network equations: modulation instability, interactions of higher-order discrete vector rational solitons and dynamical behaviours
Nonlinear self-dual network equations: modulation instability, interactions of higher-order discrete vector rational solitons and dynamical behaviours
复制标题
非线性自对偶网络方程:调制不稳定性、高阶离散向量有理孤子的相互作用和动力学行为
DOI:
10.1098/rspa.2020.0512
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发表时间:
2020-10
期刊:
影响因子:
--
通讯作者:
G. Zhang
中科院分区:
文献类型:
--
作者:
X. Wen;Z. Yan;G. Zhang
The nonlinear self-dual network equations that describe the propagations of electrical signals in nonlinear LC self-dual circuits are explored. We firstly analyse the modulation instability of the constant amplitude waves. Secondly, a novel generalized perturbation (M, N − M)-fold Darboux transform (DT) is proposed for the lattice system by means of the Taylor expansion and a parameter limit procedure. Thirdly, the obtained perturbation (1, N − 1)-fold DT is used to find its new higher-order rational solitons (RSs) in terms of determinants. These higher-order RSs differ from those known results in terms of hyperbolic functions. The abundant wave structures of the first-, second-, third- and fourth-order RSs are exhibited in detail. Their dynamical behaviours and stabilities are numerically simulated. These results may be useful for understanding the wave propagations of electrical signals.
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DOI:
10.1103/physreve.87.013201
发表时间:
2013-01
期刊:
Physical review. E, Statistical, nonlinear, and soft matter physics
影响因子:
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2016-01
期刊:
Chaos (Woodbury, N.Y.)
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2.9
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期刊:
Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics
影响因子:
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通讯作者:
Bilbault;Marquié