Author

P. Bessa

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Preprint Sep 2026

Matter density perturbations in Quadratic Gravity

We investigate linear matter-density perturbations in full quadratic gravity. Working in the longitudinal gauge and adopting the sub-horizon and quasi-static approximations, we obtain an algebraic expression for the effective gravitational coupling in the theory and the equation for evolution of matter density perturba...

P. Bessa · 0 citations