2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/94239The main goal of this paper is to give a pedagogical introduction to Quantum Information Theory-to do this in a new way, using network diagrams called Quantum Bayesian Nets. A lesser goal of the paper is to propose a few new ideas, such as associating with each quantum Bayesian net a very useful density matrix that we call the meta density matrix.73 pages (files: 1 .tex, 3 .sty, 22 .eps)Quantum Physicstext