2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/93582I report two general methods to construct quantum convolutional codes for quantum registers with internal $N$ states. Using one of these methods, I construct a quantum convolutional code of rate 1/4 which is able to correct one general quantum error for every eight consecutive quantum registers.To be reported in the 1st NASA Conf. on Quantum Comp., uses llncs.sty, 12 pagesQuantum Physicstext