2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/92757Recent experiments in quantum optics have shed light on the foundations of quantum physics. Quantum erasers - modified quantum interference experiments - show that quantum entanglement is responsible for the complementarity principle.8 pages. Original unedited and unillustrated version of article in American Scientist magazineQuantum Physicstext