Abstract
In this paper, we studied a nonlinear wave equation that models the propagation of optical solutions in a weakly nonlocal and parabolic competing nonlinear medium. The exact traveling wave type solutions formulated in hyperbolic functions, rational and trigonometric functions multiplied by some exponential functions to the governing equation are determined explicitly by the extended form of the Kudryashov method. We have examined the behavior of the modulation instability (MI) growth rate. To substantiate the stability of the obtained dark and bell-shaped solitons, we use the split-step Fourier method. In addition, the conservation laws describing significant physical concepts of this equation are examined. Compared to the obtained results with Younis et al. (J Nonlinear Opt Phys Mater 24(04):1550049, 2015), Zhou et al. (Optik 124(22):5683–5686, 2013; Proc Rom Acad Ser A 16(2):152–159, 2015) and Akinyemi et al. (Optik 230:166281, 2021), we have shown the propagation of the solitonic waves which sometime tilt from right to left with stable shape.
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Souleymanou Abbagari: Conceptualization, Formal analysis, Investigation, Methodology, Writing-original draft, Resources, Software. Alphonse Houwe: Conceptualization, Investigation, Methodology, Writing-original draft, Resources, Software. A. H. Kara: Writing-original draft, Resources, Software. Hadi Rezazadeh: Writing-original draft, Resources, Software. Lanre Akinyemi: Writing-review and editing, Validation, Methodology, Resources, Software. Serge P T Mukamc: Review and editing, Formal analysis. Serge Y. Doka: Writing-review and editing, Formal analysis, Resources, Supervision. Thomas B. Bouetou: Writing-review and editing, Formal analysis, Resources, Supervision
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Souleymanou, A., Houwe, A., Kara, A.H. et al. Explicit exact solutions and conservation laws in a medium with competing weakly nonlocal nonlinearity and parabolic law nonlinearity. Opt Quant Electron 55, 464 (2023). https://doi.org/10.1007/s11082-023-04694-z
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DOI: https://doi.org/10.1007/s11082-023-04694-z