@Article{CiCP-17-2, author = {}, title = {Fourth Order Exponential Time Differencing Method with Local Discontinuous Galerkin Approximation for Coupled Nonlinear Schrödinger Equations}, journal = {Communications in Computational Physics}, year = {2015}, volume = {17}, number = {2}, pages = {510--541}, abstract = {

This paper studies a local discontinuous Galerkin method combined with fourth order exponential time differencing Runge-Kutta time discretization and a fourth order conservative method for solving the nonlinear Schrödinger equations. Based on different choices of numerical fluxes, we propose both energy-conserving and energy-dissipative local discontinuous Galerkin methods, and have proven the error estimates for the semi-discrete methods applied to linear Schrödinger equation. The numerical methods are proven to be highly efficient and stable for long-range soliton computations. Extensive numerical examples are provided to illustrate the accuracy, efficiency and reliability of the proposed methods.

}, issn = {1991-7120}, doi = {https://doi.org/10.4208/cicp.060414.190914a}, url = {https://global-sci.com/article/80388/fourth-order-exponential-time-differencing-method-with-local-discontinuous-galerkin-approximation-for-coupled-nonlinear-schrodinger-equations} }