Solitons in an Extended Nonlinear Schrödinger Equation with Pseudo Stimulated Scattering and Inhomogeneous Cubic Nonlinearity

2015 ◽  
Vol 58 (3) ◽  
pp. 209-215
Author(s):  
N. V. Aseeva ◽  
E. M. Gromov ◽  
V. V. Tyutin
2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
H. Chachou Samet ◽  
M. Benarous ◽  
M. Asad-uz-zaman ◽  
U. Al Khawaja

We derive the solitonic solution of the nonlinear Schrödinger equation with cubic nonlinearity, complex potentials, and time-dependent coefficients using the Darboux transformation. We establish the integrability condition for the most general nonlinear Schrödinger equation with cubic nonlinearity and discuss the effect of the coefficients of the higher-order terms in the solitonic solution. We find that the third-order dispersion term can be used to control the soliton motion without the need for an external potential. We discuss the integrability conditions and find the solitonic solution of some of the well-known nonlinear Schrödinger equations with cubic nonlinearity and time-dependent coefficients. We also investigate the higher-order nonlinear Schrödinger equation with cubic and quintic nonlinearities.


2020 ◽  
Vol 34 (12) ◽  
pp. 2050122 ◽  
Author(s):  
Iftikhar Ahmed ◽  
A. R. Seadawy ◽  
Dianchen Lu

By utilizing the logarithmic transformation and symbolic computation with ansatz functions technique, W-shaped rational solitons are obtained for the nonlinear Schrödinger equation with anti-cubic nonlinearity. Meanwhile, the interaction between rational solitons and the kink wave is also investigated.


2012 ◽  
Vol 26 (26) ◽  
pp. 1250147 ◽  
Author(s):  
WEI-MIN ZHANG

Via He's semi-inverse method, variational principles are established for the fourth order nonlinear Schrödinger equation with cubic nonlinearity. Based on the obtained variational formulations, a bright-soliton solution can be obtained using He's variational method.


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