2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/93416We discuss the quantum search algorithm using complex queries that has recently been published by Grover (quant-ph/9706005). We recall the algorithm adding some details showing which complex query has to be evaluated. Based on this version of the algorithm we discuss its complexity.4 pages, RevTeX, no figuresQuantum Physicstext