 Logarithmic growth of matter perturbations during radiation domination

ID: logarithmic-growth-of-matter-perturbations-during-radiation-domination

When matter self-gravity is negligible during radiation domination,

a \propto t^{1/2}

and

\ddot{δ} + 2 H \dot{δ} = 0

gives

δ = C_{1} + C_{2} lo g a

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