2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/91080This is a short introduction to Quantum Computing intended for physicists. The basic idea of a quantum computer is introduced. Then we concentrate on Shor's integer factoring algorithm.Lectures given at the winter school ``IX Seminaire Rhodanien de Physique'' on ``Physics of Entangled States'' in Dolomieu, France, February 26 - March 2 2001. Proceedings (2002) edited by R.Arvieu and S.WeigertQuantum Physicstext