2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/21189Stubbed waveguides and stub transistors are candidates for next generation electronic devices. In particular, such structures may be used in spintronics-based quantum computation, because of its ability to induce spin-polarized carriers. In this paper, we present the simulation of the conductance of the stub transistor (single and double-gated), modeled with a nearest-neighbor tight-binding Hamiltonian. The oscillatory behavior of the channel conductance with the applied stub voltage is observed.14 pages, 9 figuresMesoscale and Nanoscale Physicstext