@Article{CiCP-35-905, author = {Krah , PhilippYin , Xi-YuanBergmann , JuliusNave , Jean-Christophe and Schneider , Kai}, title = {A Characteristic Mapping Method for Vlasov-Poisson with Extreme Resolution Properties}, journal = {Communications in Computational Physics}, year = {2024}, volume = {35}, number = {4}, pages = {905--937}, abstract = {

We propose an efficient semi-Lagrangian characteristic mapping method for solving the one+one-dimensional Vlasov-Poisson equations with high precision on a coarse grid. The flow map is evolved numerically and exponential resolution in linear time is obtained. Global third-order convergence in space and time is shown and conservation properties are assessed. For benchmarking, we consider linear and nonlinear Landau damping and the two-stream instability. We compare the results with a Fourier pseudo-spectral method and results from the literature. The extreme fine-scale resolution features are illustrated showing the method’s capabilities to efficiently treat filamentation in fusion plasma simulations.

}, issn = {1991-7120}, doi = {https://doi.org/10.4208/cicp.OA-2024-0012}, url = {http://global-sci.org/intro/article_detail/cicp/23089.html} }