2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/127149Using a model comprising a 2-level bridge connecting free electron reservoirs we show that coupling of a molecular bridge to electron-hole excitations in the leads can markedly effect the source-drain current through a molecular junction.In some cases, e.g. molecules that exhibit strong charge transfer transitions, the contribution from electron-hole excitations can exceed the Landauer elastic current and dominate the observed conduction.4 pages, 2 figures, submitted to PRLMesoscale and Nanoscale Physicstext