2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/92457In quantum communication feedback may be defined in a number of distinct ways. An analysis of the effect feedback has on the rate information may be communicated is given, and a number of results and conjectures are stated.5 pages. Slightly updated version of talk given at FQI04, Camerino, 16-19 April 2004Quantum Physicstext