A novel reduction approach to obtain $${\varvec{N}}$$-soliton solutions of a nonlocal nonlinear Schrödinger equation of reverse-time type

2021 ◽  
Vol 106 (1) ◽  
pp. 775-781
Author(s):  
Jianping Wu
2021 ◽  
Vol 2021 ◽  
pp. 1-6
Author(s):  
Guiying Chen ◽  
Xiangpeng Xin ◽  
Feng Zhang

An integrable variable coefficient nonlocal nonlinear Schrödinger equation (NNLS) is studied; by employing the Hirota’s bilinear method, the bilinear form is obtained, and the N -soliton solutions are constructed. In addition, some singular solutions and period solutions of the addressed equation with specific coefficients are shown. Finally, under certain conditions, the asymptotic behavior of the two-soliton solution is analyzed to prove that the collision of the two-soliton is elastic.


Mathematics ◽  
2020 ◽  
Vol 8 (7) ◽  
pp. 1099
Author(s):  
Yehui Huang ◽  
Hongqing Jing ◽  
Min Li ◽  
Zhenjun Ye ◽  
Yuqin Yao

The parity-time symmetric nonlocal nonlinear Schrödinger equation with self-consistent sources (PTNNLSESCS) is used to describe the interaction between an high-frequency electrostatic wave and an ion-acoustic wave in plasmas. In this paper, the soliton solutions, rational soliton solutions and rogue wave solutions are derived for the PTNNLSESCS via the generalized Darboux transformation. We find that the soliton solutions can exhibit the elastic interactions of different type of solutions such as antidark-antidark, dark-antidark, and dark-dark soliton pairs on a continuous wave background. Also, we discuss the degenerate case in which only one antidark or dark soliton remains. The rogue wave solution is derived in some specially chosen situations.


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