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Solving cubic and coupled nonlinear Schrödinger equations using the homotopy analysis method

International Journal of Applied Mathematics and Mechanics • 2011
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Publication Information
Authors Hany N. Hassan; Magdy A. El-Tawil
Keywords Cubic nonlinear Schrödinger, Coupled nonlinear Schrödinger equations, Homotopy analysis method, Convergence-controller parameter
Journal International Journal of Applied Mathematics and Mechanics
Publisher Not Available
Volume 7
Issue 8
Pages 41-64
publication.type International
Paper Link Not Available
Supplementary Materials Not Available
Abstract
The homotopy analysis method (HAM) is applied to solve the nonlinear Schrödinger (NLS)
equations. In this paper, we will reduce the NLS equation to a system of two nonlinear
equations contain the real and imaginary parts of the solution. The method provides the
solution in the form of a rapidly convergent series with easily computable components using
symbolic computation software such as Mathematica. The scheme shows importance of
choice of convergence-control parameter ħ to guarantee the convergence of the solutions of
nonlinear differential equations. This scheme is tested on two cases study, the cubic nonlinear
Schrödinger (CNLS) equation and a system of coupled nonlinear Schrödinger equations. The
results demonstrate reliability and efficiency of the algorithm developed.