The role of visualisation in the simulation of quantum electronic transport in semiconductors

摘要

Using the Wigner function to simulate semiconductor processes and depicting the results graphically is leading to new insights concerning these devices. The Wigner function, which uses a formalism that correctly incorporates all the quantum mechanics inherent in a problem, is the Fourier transform of the density matrix, taken with respect to a difference variable. The tunneling problem and the simulation of the resonant tunneling diode are discussed.