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arXiv · 1803.02954

Numerical realization of the variational method for generating self-trapped beams

Erick I. Duque·Servando Lopez-Aguayo·Boris A. Malomed
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Abstract

We introduce a numerical variational method based on the Rayleigh-Ritz optimization principle for predicting two-dimensional self-trapped beams in nonlinear media. This technique overcomes the limitation of the traditional variational approximation in performing analytical Lagrangian integration and differentiation. Approximate soliton solutions of a generalized nonlinear Schrödinger equation are obtained, demonstrating robustness of the beams of various types (fundamental, vortices, multipoles, azimuthons) in the course of their propagation. The algorithm offers possibilities to produce more sophisticated soliton profiles in general nonlinear models.

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Erick I. Duque, Servando Lopez-Aguayo, Boris A. Malomed. 2018-03-08. Numerical realization of the variational method for generating self-trapped beams. https://doi.org/10.1364/oe.26.007451

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