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arXiv · hep-ph/9602316

The Quantum Gravitational Back-Reaction On Inflation

N. C. Tsamis·R. P. Woodard
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Abstract

We describe our recent calculation of two-loop corrections to the expansion rate of an initially inflating universe on the manifold $T^3 \times \Re$. If correct, our result proves that quantum gravitational effects slow the rate of inflation by an amount which becomes non-perturbatively large at late times. In a preliminary discussion of basic issues we show that the expansion rate is a gauge invariant, and that our ultraviolet regulator does not introduce spurious time dependence. We also derive a sharp bound on the maximum strength of higher loop effects.

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N. C. Tsamis, R. P. Woodard. 1996-10-04. The Quantum Gravitational Back-Reaction On Inflation. https://doi.org/10.1006/aphy.1997.5613

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