2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/98692We model the Fock space for the electronic resonant tunneling through a double barrier including the coherent effects of the electron-phonon interaction. The geometry is optimized to achieve the maximal optical phonon emission required by a SASER (ultrasound emitter) device.4 pages, 3 figures, to be published in Proceedings of the VI Latin American Workshop on Nonlinear Phenomena, special issue of Physica AMesoscale and Nanoscale Physicstext