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Non-linear evolution in $f(R)$ gravity: perturbative modelling of the Chameleon mechanism
We investigate the non-linear evolution of matter perturbations in $f(R)$ models with the Chameleon screening mechanism. The novel feature of our investigation is an iterative solution for the non-linear equation for the scalar field $χ= Φ- Ψ$, where $Φ$ and $Ψ$ are the potentials that characterise
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