Low-frequency electromagnetic (Darwin) applications in plasma simulation (Q1355367)

An overview is given of the most commonly used Darwin models, starting with a brief description of the underlying concept. Several variants of Darwin algorithms are presented; non-neutral and quasi-neutral finite-electron-mass, and quasi-neutral zero-electron-mass embodiments are included. Also discussed are new numerical methods that increase the range of parameters for which these models are practical. Finally, a new Darwin variant is described that can follow the time dependence of surface and bulk currents in magnitically active materials (i.e. superconductors).