2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/150900A set of quantum error correcting codes based on classical Reed-Muller codes is described. The codes have parameters [[n,k,d]] = [[2^r, 2^r - C(r,t) - 2 sum_{i=0}^{t-1} C(r,i), 2^t + 2^{t-1} ]].9 pages LaTeX. Replaced version corrects an important oversight. Further information at http://eve.physics.ox.ac.uk/ASGhome.htmlQuantum Physicstext