2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/20925Based on the van der Waals interaction, the periodically nonlinear potential of a singe-walled carbon nanotube (SWNT) with finite length in an infinite length SWNT is analytically obtained. It is found that the inner SWNT can oscillate in the outer SWNT with frequency beyond ten Gigahertz, even up to a hundred Gigahertz.9 pages, 8 figures, to PRBMesoscale and Nanoscale PhysicsMaterials Sciencetext