Higher-order rogue wave-like solutions for a nonautonomous nonlinear Schrödinger equation with external potentials

Lei Liu, Bo Tian, Xiao-Yu Wu and Yan Sun

Physica A: Statistical Mechanics and its Applications, 2018, vol. 492, issue C, 524-533

Abstract: Under investigation in this paper is the higher-order rogue wave-like solutions for a nonautonomous nonlinear Schrödinger equation with external potentials which can be applied in the nonlinear optics, hydrodynamics, plasma physics and Bose–Einstein condensation. Based on the Kadomtsev–Petviashvili hierarchy reduction, we construct the Nth order rogue wave-like solutions in terms of the Gramian under the integrable constraint. With the help of the analytic and graphic analysis, we exhibit the first-, second- and third-order rogue wave-like solutions through the different dispersion, nonlinearity and linear potential coefficients. We find that only if the dispersion and nonlinearity coefficients are proportional to each other, heights of the background of those rogue waves maintain unchanged with time increasing. Due to the existence of complex parameters, such nonautonomous rogue waves in the higher-order cases have more complex features than those in the lower.

Keywords: A nonautonomous nonlinear schrödinger equation; Higher-order rogue waves; Kadomtsev–Petviashvili hierarchy reduction; Gramian determinant (search for similar items in EconPapers)
Date: 2018
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:phsmap:v:492:y:2018:i:c:p:524-533

DOI: 10.1016/j.physa.2017.09.024

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