Simulation at the start of the new millennium: crossing the quantum-classical threshold

It is clear that continued scaling of semiconductor devices will bring us to a regime with gate lengths of less than 50 nm. While there are questions to be answered in the fabrication of these devices, the questions that must be addressed in simulation are no less difficult. Indeed, pushing to dimensional sizes such as this will probe the transition from classical to quantum transport, and many new issues will arise that must be addressed.