On the Reliability of the Langevin Pertubative Solution in Stochastic Inflation

Details On the Reliability of the Langevin Pertubative Solution in Stochastic Inflation On the Reliability of the Langevin Pertubative Solution in Stochastic Inflation

2005-11-29

arxiv.org/abs/hep-th/0511292v1

Phys.Rev.D73:043517,2006

Physics

High Energy Physics

High Energy Physics - Theory

7 pages, 3 figures

Scientific paper

10.1103/PhysRevD.73.043517

A method to estimate the reliability of a perturbative expansion of the stochastic inflationary Langevin equation is presented and discussed. The method is applied to various inflationary scenarios, as large field, small field and running mass models. It is demonstrated that the perturbative approach is more reliable than could be naively suspected and, in general, only breaks down at the very end of inflation.

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