Dark-bright solitons and the role of their interaction in breather generation  

作　　者：Le Li Wen-Juan Che Xi-Zhe Liu Chong Liu Nail Akhmediev 

机构地区：[1]School of Physics,Northwest University,Xi'an 710127,China [2]Peng Huanwu Center for Fundamental Theory,Xi'an 710127,China [3]Shaanxi Key Laboratory for Theoretical Physics Frontiers,Xi'an 710127,China [4]Department of Fundamental and Theoretical Physics,Research School of Physics,The Australian National University,Canberra,ACT 2600,Australia

出　　处：《Communications in Theoretical Physics》2025年第4期12-22,共11页理论物理通讯(英文版)

基　　金：supported by the NSFC(Grants Nos.12175178and 12247103);Shaanxi Fundamental Science Research Project for Mathematics and Physics(Grant No.22JSY016);Graduate innovation project of Northwest University(Grant No.CX2024137)。

摘　　要：We study fundamental dark-bright solitons and the interaction of vector nonlinear Schr?dinger equations in both focusing and defocusing regimes.Classification of possible types of soliton solutions is given.There are two types of solitons in the defocusing case and four types of solitons in the focusing case.The number of possible variations of two-soliton solutions depends on this classification.We demonstrate that only special types of two-soliton solutions in the focusing regime can generate breathers of the scalar nonlinear Schr?dinger equation.The cases of solitons with equal and unequal velocities in the superposition are considered.Numerical simulations confirm the validity of our exact solutions.

关 键 词：Manakov equations Dark-bright solitons BREATHERS 

分 类 号：O413[理学—理论物理]