A note on inflation and transplanckian physics

Details A note on inflation and transplanckian physics A note on inflation and transplanckian physics

2002-03-21

arxiv.org/abs/hep-th/0203198v3

Phys.Rev. D66 (2002) 023511

Physics

High Energy Physics

High Energy Physics - Theory

12 pages. v2: typos corrected and references added. v3: final version accepted for publication by PRD. Improved discussion of

Scientific paper

10.1103/PhysRevD.66.023511

In this paper we consider the influence of transplanckian physics on the CMBR anisotropies produced by inflation. We consider a simple toy model that allows for analytic calculations and argue on general grounds, based on ambiguities in the choice of vacuum, that effects are expected with a magnitude of the order of $H/\Lambda$, where $H$ is the Hubble constant during inflation and $\Lambda$ the scale for new physics, e.g. the Planck scale.

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