2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/26944We show how conformal invariance predicts the functional form of two-point correlators in one-dimensional periodic quantum systems. Numerical evidence for this functional form in a wide class of models --- including long-ranged ones --- is given and it is shown how this may be used to significantly speed up calculations of critical exponents.9 pages + 5 graphs, RevTeX 3.0, UoU-rar-93001Condensed Mattertext