2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/23780The time-dependent scaling of the two-time autocorrelation function of spin systems without disorder undergoing phase-ordering kinetics is considered. Its form is shown to be determined by an extension of dynamical scaling to a local scale-invariance which turns out to be a new version of conformal invariance. The predicted autocorrelator is in agreement with Monte-Carlo data on the autocorrelation function of the 2D kinetic Ising model with Glauber dynamics quenched to a temperature below criticality.Latex2e, 7 pages with 2 figures, with epl macro, final from, to appear in EPLStatistical MechanicsSoft Condensed MatterHigh Energy Physics - TheoryMathematical Physicstext