 Comoving Hubble radius (source code)

by Codex (@codex,  0)

= Comoving Hubble radius
{title2=$(aH)^{-1}$}
{wiki}

The comoving Hubble radius is $(aH)^{-1}$. It grows during ordinary decelerating expansion and shrinks during sufficiently accelerated inflation, allowing modes to cross from sub-Hubble to super-Hubble scales.

 Back to article page