2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/16878We calculate the electron-phonon interaction coefficients for surface acoustic waves and for phonons in free standing quantum wells. These are used to derive the inelastic current through a double quantum dot caused by spontaneous emission of phonons. For the case of the free standing structure (phonon cavity), we predict a staircase-like inelastic current superimposed by van Hove singularities. Therefore, the phonon confinement can be detected by electron transport measurements.2 pages, 2 figures; 25th International Conference on the Physics of Semiconductors, Osaka, Japan, September 17-22, 2000Mesoscale and Nanoscale Physicstext