2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/186017Consider a spin s prepared in a pure state. It is shown that, generically, the moduli of the (2s+1) spin components along three directions in space determine the state unambiguously. These probabilities are accessible experimentally by means of a standard Stern-Gerlach apparatus. To reconstruct a pure spin state is therefore possible on the basis of 3(2s+1) measured intensities.4 pages, revtexQuantum PhysicsMathematical Physicstext