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Trans-Planckian footprints in inflationary cosmology

G. L. Alberghi·R. Casadio·A. Tronconi
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Abstract

We consider a minimum uncertainty vacuum choice at a fixed energy scale Lambda as an effective description of trans-Planckian physics, and discuss its implications for the linear perturbations of a massless scalar field in power-law inflationary models. We find possible effects with a magnitude of order H/Λin the power spectrum, in analogy with previous results for de-Sitter space-time.

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G. L. Alberghi, R. Casadio, A. Tronconi. 2003-11-14. Trans-Planckian footprints in inflationary cosmology. https://doi.org/10.1016/j.physletb.2003.11.004

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