Wigner-path approach to nonequilibrium quantum transport

Recent developments of the application of the Wigner-path method to nonequilibrium quantum transport in mesoscopic systems are presented. The concept of wigner path allows the formulation of a Monte Carlo simulation which is quantum mechanically rigorous and yet very similar to the one used in semiclassical transport theory. Scatterings with the potential profile and with phonons are included in the path in a way that takes automatically into account all quantum effects, such as intracollisional field effect and collisional broadening