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Back-Reaction to Dilaton-Driven Inflation

A. Ghosh, R. Madden, G. Veneziano

hep-tharXiv:hep-th/9908024

Abstract

We compute the leading-order back-reaction to dilaton-driven inflation, due to graviton, dilaton and gauge-boson production. The one-loop effect turns out to be non-vanishing (unlike the case for pure de-Sitter and for power-law inflation), to be of relative order P2H2(t), and to have the correct sign for favouring the exit to a FRW phase.

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