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Inflationary Perturbations from Deformed CFT

Jan Pieter van der Schaar
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Abstract

We present a new method to calculate the spectrum of (slow-roll) inflationary perturbations, inspired by the conjectured dS/CFT correspondence. We show how the standard result for the spectrum of inflationary perturbations can be obtained from deformed CFT correlators, whose behavior is determined by the Callan-Symanzik equation. We discuss the possible advantages of this approach and end with some comments on the role of holography in dS/CFT and its relation to the universal nature of the spectrum of inflationary perturbations.

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Jan Pieter van der Schaar. 2004-02-18. Inflationary Perturbations from Deformed CFT. https://doi.org/10.1088/1126-6708%2F2004%2F01%2F070

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