Speaker
Description
We have presented a cosmological model of the Universe in $f(Q)$ gravity which shows the accelerating behavior. First the modified Friedmann equations have been reformulated into a system of coupled differential equations in order to ensure that the minimal set of equations required for a second-order gravity theory. These equations are then solved numerically. To constrain the parameters through Bayesian inference, we follow the Markov Chain Monte Carlo (MCMC) techniques and used Cosmic Chronometers (CC) and the high-precision Pantheon$^+$ Type Ia Supernovae datasets. The evolution of key cosmological parameters indicates that the model exhibits quintessence-like behavior at present, with a natural tendency to converge toward the $\Lambda$CDM model at late times. To further support this outcome, we performed a critical point analysis, which confirms the existence of a stable de Sitter attractor.