In this paper, we show that the spatial discretization of the nonlinear SchrSdinger equation leads to a Hamiltonian system, which can be simulated with symplectic numerical schemes. In particular, we apply two symplectic integrators to the nonlinear SchrSdinger equation, and we demonstrate that the
Symplectic and multi-symplectic methods for the nonlinear Schrödinger equation
✍ Scribed by Jing-Bo Chen; Meng-Zhao Qin; Yi-Fa Tang
- Publisher
- Elsevier Science
- Year
- 2002
- Tongue
- English
- Weight
- 725 KB
- Volume
- 43
- Category
- Article
- ISSN
- 0898-1221
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✦ Synopsis
The Hamiltonian and the multi-symplectic formulations of the nonlinear SchrGdinger equation are considered. For the multi-symplectic formulation, a new six-point difference scheme which is equivalent to the multi-symplectic Preissman integrator is derived. Numerical experiments are also reported.
📜 SIMILAR VOLUMES
In general, proofs of convergence and stability are difficult for symplectic schemes of nonlinear equations. In this paper, a symplectic difference scheme is proposed for an initialboundary value problem of a coupled nonlinear Schrödinger system. An important lemma and an induction argument are used