2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/93410We show that the impact of the fundamental length in quantum mechanics can be studied within the formalism of Berry's geometrical phase with the line broadening as a resulting physical effect.4 pages, LaTeX style; IL NUOVO CIMENTO B, N.B.(1997) in pressQuantum Physicstext