The Wigner Monte Carlo method for accurate semiconductor device simulation

The Wigner equation can conveniently describe quantum transport problems in terms of particles evolving in the phase space. Improvements in the particle generation scheme of the Wigner Monte Carlo method are shown, which increase the accuracy of simulations as validated by comparison to exact solutions of the Schrödinger equation. Simulations with a time-varying potential are demonstrated and issues which arise in devices with an externally applied voltage between the contacts are treated, thereby further advancing the Wigner Monte Carlo method for the simulation of semiconductor devices.