2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/92395By means of the idea of measurements on the crossed space-time nonlocal observables, we extend the mechanism for the two-way quantum teleportation to the chain teleportation among N spatially separated spin-1/2 systems. Since in the process only the local interactions are used, the microcausality is automatically satisfied.3 pages, 1 figureQuantum Physicstext