2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/92629Quantum computers are believed to surpass the classical ones. Moreover, it is claimed that this belief reaches the level of a mathematically proven fact within the oracle model of computation. Here we impair the whole class of the so-called rigorist proofs of quantum speed-up obtained within this model.Quantum Physicstext