@techreport{oai:nifs-repository.repo.nii.ac.jp:00010403,
 author = {Watanabe,  T.-H. and Sugama,  H.},
 month = {Feb},
 note = {Vlasov and drift kinetic simulation methods based on the symplectic integrators are benchmarked for test problems on the linear and nonlinear Landau dampings and the Kelvin-Helmholtz (K-H) instability. The explicit symplectic integrator for the separable Hamiltonian straightforwardly leads to generalization of the splitting scheme for the Vlasov-Poisson system. The Nth-order version improves the total energy conservation decreasing the error as propto Delta t^N where Deltat denotes the time step size. An Eulerian drift kinetic simulation scheme derived from the implicit symplectic integrator for the non-separable Hamiltonian exactly satisfies the conservation of the energy and the enstrophy in the K-H instability, and results in successful application to the plasma echo.},
 title = {Vlasov and Drift Kinetic Simulation Methods Based on the Symplectic Integrator},
 year = {2004}
}