4.5 Article

A Lagrangian approach to modulational instability in nonlocal nonlinear Kerr media

期刊

PHYSICS LETTERS A
卷 413, 期 -, 页码 -

出版社

ELSEVIER
DOI: 10.1016/j.physleta.2021.127602

关键词

Lagrangian approach; Modulation instability; Nonlocal nonlinear Kerr medium

向作者/读者索取更多资源

By using a time-dependent variational approach, this study investigates the modulational instability of plane waves in Kerr media with nonlocal nonlinearity. Ordinary differential equations describing the evolution of modulational perturbations are obtained and analyzed, along with numerical simulations to confirm theoretical results. The level of nonlocality significantly impacts the behavior of modulational instability in the nonlinear stage.
Using a time-dependent variational approach to study modulational instability (MI) of plane waves in Kerr media with nonlocal nonlinearity in its linear stage, I obtain and analyze the set of ordinary differential equations that describe the evolution over time of the amplitude and phase of modulational perturbations. From those equations, I obtain the effective potential of the system and perform numerical simulations to verify the theoretical results. For the nonlinear stage, I find that the degree of nonlocality notably changes the behavior of MI in the central oscillatory region of the integration. (C) 2021 Elsevier B.V. All rights reserved.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.5
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

暂无数据
暂无数据