Gauge equivalent structure and solitary wave solution for a modified Landau-Lifshitz equation
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- 作者：LiYuan Ma maliyuan@sjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author ; ZuoNong Zhu ; znzhu@sjtu.edu.cn" class="auth_mail" title="E-mail the corresponding author
- 关键词：Gauge equivalence ; Given curvature condition ; Modified Landau&ndash ; Lifshitz equation ; Perturbed defocusing nonlinear Schrö ; dinger equation
- 刊名：Communications in Nonlinear Science and Numerical Simulation
- 出版年：2016
- 出版时间：November 2016
- 年：2016
- 卷：40
- 期：Complete
- 页码：44-50
- 全文大小：646 K
文摘
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The gauge equivalence between the modified Landau–Lifshitz equation and the perturbed defocusing nonlinear Schrödinger equation is proved.
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Approximate 1-soliton solution to the modified Landau–Lifshitz equation is given.
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Soliton perturbation theory of defocusing nonlinear Schrödinger equation is used to construct the first-order approximate 1-soliton solution to the modified Landau-Lifshitz equation.