Excitations of breathers and rogue wave in the Heisenberg spin chain

被引：6
|
作者：
Qi, Jian-Wen [1 ,2 ]
Duan, Liang [1 ,2 ]
Yang, Zhan-Ying [1 ,2 ]
Yang, Wen-Li [2 ,3 ]
机构：
[1] Northwest Univ, Sch Phys, Xian 710127, Shaanxi, Peoples R China
[2] Shanxi Key Lab Theoret Phys Frontiers, Xian 710127, Shaanxi, Peoples R China
[3] Northwest Univ, Inst Modern Phys, Xian 710127, Shaanxi, Peoples R China
来源：
ANNALS OF PHYSICS | 2018年 / 388卷
基金：
中国国家自然科学基金;
关键词：
Heisenberg spin chain; Nonlinear excitation; Breather; Rogue wave; Magnetic moment distribution; MODULATIONAL INSTABILITY; NONLINEAR EXCITATIONS; FERROMAGNETIC CHAINS; HELIMAGNET; MAGNETORESISTANCE; NANOWIRE; EXCHANGE; SOLITONS;
D O I：
10.1016/j.aop.2017.11.017
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We study the excitations of breathers and rogue wave in a classical Heisenberg spin chain with twist interaction, which is governed by a fourth-order integrable nonlinear Schrodinger equation. The dynamics of these waves have been extracted from an exact solution. In particular, the corresponding existence conditions based on the parameters of perturbation wave number K, magnon number N, background wave vector k(s) and amplitude c are presented explicitly. Furthermore, the characteristics of magnetic moment distribution corresponding to these nonlinear waves are also investigated in detail. Finally, we discussed the state transition of three types nonlinear localized waves under the different excitation conditions. (C) 2017 Elsevier Inc. All rights reserved.
引用
收藏
页码：315 / 322
页数：8
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