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Binary Darboux transformation and multi-dark solitons for a higher-order nonlinear Schrodinger equation in the inhomogeneous optical fiber

Binary Darboux transformation and multi-dark solitons for a higher-order nonlinear Schr?dinger equation in the inhomogeneous optical fiber

作     者:Chong Yang Xi-Yang Xie Chong Yang;Xi-Yang Xie

作者机构:Department of Mathematics and PhysicsNorth China Electric Power UniversityBaoding 071003China 

出 版 物:《Communications in Theoretical Physics》 (理论物理通讯(英文版))

年 卷 期:2020年第72卷第12期

页      面:18-24页

核心收录:

学科分类:070207[理学-光学] 07[理学] 070104[理学-应用数学] 0701[理学-数学] 0702[理学-物理学] 

基  金:supported by the National Natural Science Foundation of China under grant no.11905061 by the Fundamental Research Funds for the Central Universities(No.9161718004) 

主  题:higher-order nonlinear Schrodinger equation inhomogeneous optical fiber binary Darboux transformation dark solitons 

摘      要:Dark solitons in the inhomogeneous optical fiber are studied in this manuscript via a higher-order nonlinear Schr?dinger equation,since dark solitons can be applied in waveguide optics as dynamic switches and junctions or optical logic *** on the Lax pair,the binary Darboux transformation is constructed under certain constraints,thus the multi-dark soliton solutions are *** propagation and collision are graphically discussed with the group-velocity dispersion,third-and fourth-order dispersions,which can affect the solitons’velocities but have no effect on the *** collisions between the two dark solitons and among the three dark solitons are displayed,while the elasticity cannot be influenced by the above three coefficients.

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