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A Newtonian Model for the Quantum Gravitational Back-Reaction on Inflation

R. P. Woodard
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Abstract

Quantum gravitational back-reaction offers a simultaneous explanation for why the cosmological constant is so small and a natural model of inflation in which scalars play no role. In this talk I review previous work and present a simple model of the mechanism in which the induced stress tensor behaves like negative vacuum energy with a density proportional to $-Λ/{8πG} \cdot (G Λ)^2 \cdot H t$. The model also highlights the essential role of causality in back-reaction.

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BibTeXRIS

R. P. Woodard. 2001-07-11. A Newtonian Model for the Quantum Gravitational Back-Reaction on Inflation. https://doi.org/10.1016/s0920-5632(01)01607-3

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