2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/125013We explore the nature of anomalous diffusion of wave packets in disorder-free incommensurate multi-walled carbon nanotubes. The spectrum-averaged diffusion exponent is obtained by calculating the multifractal dimension of the energy spectrum. Depending on the shell chirality, the exponent is found to lie within the range $1/2 \leq η< 1$. For large unit cell mismatch between incommensurate shells, $η$ approaches the value 1/2 for diffusive motion. The energy-dependent quantum spreading reveals a complex density-of-states-dependent pattern with ballistic, super-diffusive or diffusive character.4 pages, 4 figuresMesoscale and Nanoscale Physicstext