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.