Remarks on the renormalization of primordial cosmological perturbations
classification
🌀 gr-qc
astro-ph.COhep-th
keywords
renormalizationperturbationsaddressbasisbrieflycosmologicalcurvedfound
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We briefly review the need to perform renormalization of inflationary perturbations to properly work out the physical power spectra. We also summarize the basis of (momentum-space) renormalization in curved spacetime and address several misconceptions found in recent literature on this subject.
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