Erice: INTERNATIONAL SCHOOL OF NUCLEAR PHYSICS, 47th COURSE

We investigate the late-time accelerated expansion of the Universe within the framework of power law f(Q) gravity, adopting a logarithmic parametrization of dark energy. This approach enables a smooth evolution of the equation of state across different redshifts. The model parameters are constrained using a Markov Chain Monte Carlo (MCMC) analysis based on recent observational data, including the Pantheon+ Type Ia supernovae sample, DESI DR2 Baryon Acoustic Oscillations, and Cosmic Chronometers. We also compare our results with the standard ΛCDM model using statistical criteria. Our findings indicate that this model offers a viable and flexible alternative to standard dark energy scenarios, exhibiting a richer dynamical behavior at low redshifts.