Rogue wave solutions of the nonlinear Schrödinger equation with variable coefficients

Pramana ◽  
2015 ◽  
Vol 85 (6) ◽  
pp. 1063-1072 ◽  
Author(s):  
CHANGFU LIU ◽  
YAN YAN LI ◽  
MEIPING GAO ◽  
ZEPING WANG ◽  
ZHENGDE DAI ◽  
...  
Keyword(s):  
Schrödinger Equation ◽  
Nonlinear Schrödinger Equation ◽  
Schrodinger Equation ◽  
Rogue Wave ◽  
Variable Coefficients ◽  
Nonlinear Schrodinger Equation ◽  
Nonlinear Schrödinger ◽  
Wave Solutions ◽  
Rogue Wave Solutions

Breather and rogue wave solutions of an extended nonlinear Schrödinger equation with higher-order odd and even terms

2018 ◽  
Vol 32 (26) ◽  
pp. 1850309 ◽  
Author(s):  
Dan Su ◽  
Xuelin Yong ◽  
Yanjiao Tian ◽  
Jing Tian
Keyword(s):  
Schrödinger Equation ◽  
Nonlinear Schrödinger Equation ◽  
Schrodinger Equation ◽  
Rogue Wave ◽  
Higher Order ◽  
Nonlinear Schrodinger Equation ◽  
Spectral Parameters ◽  
Nonlinear Schrödinger ◽  
Wave Solutions ◽  
Rogue Wave Solutions

In this paper, an extended nonlinear Schrödinger equation with higher-order odd (third-order) and even (fourth-order) terms is investigated in detail. The equation for the one-dimensional magnetic systems is integrable and admits exact solutions. It is more accurate than the nonlinear Schrödinger equation in describing wave propagation in the ocean and optical fibers. First, the modulation instability of solutions is analyzed in the presence of small perturbation. Second, breather and rogue wave solutions of this equation are constructed via the modified Darboux transformation method. The effects of the higher-order terms are investigated graphically. Specially, the interactions between two breathers are studied by adjusting the spectral parameters and the collisions between breather and rogue waves are also discussed.

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