2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/136661Quantum transmissions of a free particle passing through a rectangular potential barrier with dissipation are studied using a path decomposition technique. Dissipative processes strongly suppress the transmission probability at resonance just above the barrier resulting in an unexpected reduction of the mean traversal time through the potential barrier.8 pages, 5 figures, Accepted for publication in Physics Letters AQuantum Physicstext