Matter domination
= Matter domination
During matter domination in a spatially flat universe, pressureless matter controls the expansion, $a(t)\propto t^{2/3}$, and the growing linear density mode is proportional to $a$.
= Matter domination
During matter domination in a spatially flat universe, pressureless matter controls the expansion, $a(t)\propto t^{2/3}$, and the growing linear density mode is proportional to $a$.