Trans-Planckian footprints in inflationary cosmology
classification
🌀 gr-qc
astro-phhep-th
keywords
inflationarylambdatrans-planckiananalogychoiceconsidercosmologyde-sitter
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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/\Lambda in the power spectrum, in analogy with previous results for de-Sitter space-time.
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