Closed-form solutions of the nonlinear Schrödinger equation with arbitrary dispersion and potential

Andrei D. Polyanin and Nikolay A. Kudryashov

Chaos, Solitons & Fractals, 2025, vol. 191, issue C

Abstract: For the first time, the general nonlinear Schrödinger equation is investigated, in which the chromatic dispersion and potential are specified by two arbitrary functions. The equation in question is a natural generalization of a wide class of related nonlinear partial differential equations that are often used in various areas of theoretical physics, including nonlinear optics, superconductivity and plasma physics. To construct exact solutions, a combination of the method of functional constraints and methods of generalized separation of variables is used. New exact closed-form solutions of the general nonlinear Schrödinger equation, which are expressed in quadratures or elementary functions, are found. One-dimensional non-symmetry reductions are described, which lead the considered nonlinear partial differential equation to a simpler ordinary differential equation or a system of such equations. The exact solutions obtained in this work can be used as test problems intended to assess the accuracy of numerical and approximate analytical methods for integrating nonlinear equations of mathematical physics.

Keywords: Nonlinear Schrödinger equations; Exact closed-form solutions; Solutions in quadratures; Solution in elementary functions; Method of functional constraints; Non-symmetry reductions (search for similar items in EconPapers)
Date: 2025
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Persistent link: https://EconPapers.repec.org/RePEc:eee:chsofr:v:191:y:2025:i:c:s0960077924013742

DOI: 10.1016/j.chaos.2024.115822

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