One-step leapfrog ADI-FDTD method for anisotropic magnetized plasma

A one-step leapfrog alternating-direction-implicit finite-difference time-domain (ADI-FDTD) method is proposed for modelling anisotropic magnetized plasma. Two ways to derive the differential equations are presented: one from the conventional ADI-FDTD method directly and the other from the perturbation theory. The stability of the proposed method is verified numerically. In particular, its computational efficiency in modeling anisotropic magnetized plasma is shown.