Quantum potential approaches for nano-scale device simulation

We present a new approach for quantum modelling, applicable to multidimensional ultra-small device simulation. In this work, the quantum effects are represented in terms of quantum mechanically corrected potential in the classical Boltzmann equation. We apply the Monte Carlo method to solve the quantum transport equation, and demonstrate that the quantum transport effects such as tunnelling and energy quantization can be incorporated in the standard Monte Carlo techniques. The relevance to the quantum moment theory and the density-gradient theory will also be discussed.