2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/168449We present a method for optimizing quantum circuits architecture. The method is based on the notion of "quantum comb", which describes a circuit board in which one can insert variable subcircuits. The method allows one to efficiently address novel kinds of quantum information processing tasks, such as storing-retrieving, and cloning of channels.10 eps figures + Qcircuit.texQuantum Physicstext