Late-Time Cosmology and Structure Formation in Quadratic $f(Q)$ Gravity

G. G. L. Nashed, P. V. Tretyakov, A. Eid

We investigate the cosmological evolution associated with the quadratic symmetric teleparallel gravity framework, \( f(Q)=Q+αQ^{2}+β\) where the relation \(Q\propto H^{2}\) gener…