An efficient spline scheme of the coupled nonlinear Schrödinger equations


We construct an efficient numerical scheme for the coupled nonlinear Schrödinger equations by using adaptive spline function. We use the Crank–Nicolson scheme to discretize the time variables and the adaptive spline function to discretize spatial variables. The problem is reduced to a system of matrix equation iteration. We theoretically give stability analysis and numerically prove the law of conservation of energy. Numerical simulations are performed to demonstrate the effectiveness of the method.

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I would like to thank the editors and reviewers for their valuable comments and suggestions.


This work was supported by the Natural Science Foundation of Guangdong [2015A030313827] and the Key Subject Program of Lingnan Normal University [No. 1171518004].

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Correspondence to Bin Lin.

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Lin, B. An efficient spline scheme of the coupled nonlinear Schrödinger equations. J Math Chem (2020).

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  • Coupled nonlinear Schrödinger equation
  • Conserved quantities
  • Adaptive cubic spline