Quantum Monte Carlo simulation is pretty standard for modern semiconductor devices. Most of the effects of interest in highly scaled transistors, for example, c

Quantum Monte Carlo simulation is pretty standard for modern semiconductor devices. Most of the effects of interest in highly scaled transistors, for example, cannot be properly accounted for otherwise. On the basic materials level, density functional theory is the current gold standard, and it's extremely statistics heavy. At the systems and architecture levels, you may be right, though.