Abstract: Both the finite size and the disorder considered,it explores the dynamic behavior of electron in the finite-width nanowires and carbon nanotubes in terms of the quantum diffusion theory.The results show that there exists a transition from ballistic to localized behavior with the disorder strength increasing,similar to that in two-dimensional quasiperiodic systems.For a given disorder,the ballistic-nonballistic transition is also obtained with the nanowire width increasing,exhibiting a typical quantum size e...

Key words: nanowire; quantum diffusion; autocorrelation function; mean-square displacement;