# LATE TIME FAILURE OF FRIEDMANN EQUATION

@article{Notari2006LATETF, title={LATE TIME FAILURE OF FRIEDMANN EQUATION}, author={Alessio Notari}, journal={Modern Physics Letters A}, year={2006}, volume={21}, pages={2997-3007} }

It is widely believed that the assumption of homogeneity is a good zeroth order approximation for the expansion of our Universe. We analyze the correction due to subhorizon inhomogeneous gravitational fields. While at early times this contribution (which may act as a negative pressure component) is perturbatively subdominant, we show that the perturbative series is likely to diverge at redshift of order 1, due to the growth of perturbations. So, the homogeneous Friedmann equation cannot be…

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