Abstract
We present a method by which one-dimensional nonlinear soliton and kink Schrödinger equations can be solved in closed form. The hermitean nonlinear soliton operator may contain up to second derivatives of the wave function and the vanishing condition must hold. The method is applied to solve known nonlinear Schrödinger equations for one-soliton and one-kink solutions and, by inverting the procedure, to derive new operators with wave packet solutions of algebraic and arbitrary shapes. One of them is equivalent to the Derivative Nonlinear Schrödinger equation.
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Hasse, R.W. A general method for the solution of nonlinear soliton and kink Schrödinger equations. Z Physik B 37, 83–87 (1980). https://doi.org/10.1007/BF01325508
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DOI: https://doi.org/10.1007/BF01325508