2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/90552A recursive method for producing path-entangled states of light is presented. These states may find applications in quantum lithography and high-precision interferometric measurements. The required resources are single-photon sources, linear optics components, and photodetectors. Adding a quantum memory greatly enhances the yield in comparison with the previously known schemes.4 pages, to appear in the Proceedings of the Sixth International Conference on Quantum Communication, Measurement and Computing (QCMC'02), Boston, July 22-26, 2002Quantum Physicstext