Modulational instability and rogue waves in one-dimensional nonlinear acoustic metamaterials: case of diatomic model

被引：4

作者：

Joseph, Mora ^{[1
]}

Justin, Mibaile ^{[2
]}

David, Vroumsia ^{[1
,3
]}

Sindanne, Sylvere Azakine ^{[1
]}

Betchewe, Gambo ^{[1
,2
]}

机构：

[1] Univ Maroua, Fac Sci, Dept Phys, POB 814, Maroua, Cameroon

[2] Univ Maroua, Higher Teachers Training Coll Maroua, POB 55, Maroua, Cameroon

[3] Univ Maroua, Natl Adv Sch Engn, POB 46, Maroua, Cameroon

来源：

PHYSICA SCRIPTA | 2021年 / 96卷 / 12期

关键词：

Acoustic metamaterials; duffing oscillator; nonlinear Schrodinger equations; modulational instability; rogue waves; SCHRODINGER-EQUATION; DISPERSIVE WAVES; DEEP-WATER; SOLITON; PROPAGATION; EXCITATIONS;

D O I：

10.1088/1402-4896/ac42ea

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this paper, by means of the expanded Taylor series and Lindstedt-Poincare perturbation methods, the coupled nonlinear Schrodinger equations (CNLSE) modeling the propagation of acoustic waves in acoustic metamaterial is obtained. Using these equations, the Modulational Instability (MI) phenomenon is observed in disturbance mode. Manakov integrable system is derived with suitable parameters and we shown that the Rogue Waves (RWs) can propagate diatomic acoustic metamaterials.

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页数：16

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