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Energy Fluctuations Generated by Inflation

Harald F. Muller·Christoph Schmid
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Abstract

The energy density correlation function $C(x,y)=<ρ(x)ρ(y)>-<ρ>^2$ and its Fourier transform generated by the gravitational tidal forces of the inflationary de Sitter expansion are derived for a massless or light ($m< =0$. Every observationally relevant mode (which has today $λ_{phys} H$ we have the universal law $k^3\dk\sim k^8$.

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Harald F. Muller, Christoph Schmid. 1994-01-19. Energy Fluctuations Generated by Inflation. https://arxiv.org/abs/gr-qc/9401020

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