Back-Reaction to Dilaton-Driven Inflation

Ghosh, A.; Madden, R.; Veneziano, G.

Back-Reaction to Dilaton-Driven Inflation

Authors

Ghosh, A.

Madden, R.

Veneziano, G.

Description

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 $\ell_P^2H^2(t)$, and to have the correct sign for favouring the exit to a FRW phase.
27 pages, Latex, 7 figures