2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/26164This write-up describes an efficient numerical method for the Monte Carlo calculation of the spectral density of current in the multi-junction single-electron devices and hopping structures. In future we plan to expand this write-up into a full-size paper.4 pagesMesoscale and Nanoscale Physicstext