2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/110622We show that it is possible to achieve maximally entangled mixed states of two qubits from the singlet state via the action of local non-trace-preserving quantum channels. Moreover, we present a simple, feasible linear optical implementation of one of such channels.6 pages, 3 figuresQuantum Physicstext