2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/94202The main aim of this article is to discuss characteristic physical phenomena which govern the destruction of quantum coherence of material wave packets.to be published in `The Physics and Chemistry of Wave Packets', edited by J. A. Yeazell and T. Uzer (Wiley, N. Y.)Quantum Physicstext