Conerservative and Nonconservative Schemes for the Solution of the Nonlinear Schrodinger Equation |
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Authors: | SANZ-SERNA, J. M. VERWER, J. G. |
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Affiliation: | Dpto. Ecuaciones Funcionales, Facultad de Ciencias, Universidad de Valladolid Valladolid, Spain Centre for Mathematics and Computer Science Amsterdam |
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Abstract: | Five methods for the integration in time of a semidiscretizationof the nonlinear Schrödinger equation are extensively tested.Three of them (a partly explicit scheme and two splitting procedures)are found to perform poorly. The reasons for their failure,including the so-called nonlinear blow-up, are analysed. Wedraw general conclusions on the advantages and drawbacks associatedwith the use of time-integrators which exactly conserve energy. |
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