A comment on the path integral approach to cosmological perturbation theory

Rosten, Oliver J. (2007) A comment on the path integral approach to cosmological perturbation theory. Journal of Cosmology and Astroparticle Physics, 2008 (01). 029. ISSN 1475-7516

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Abstract

It is pointed out that the exact renormalization group approach to cosmological perturbation theory, proposed in Matarrese and Pietroni, JCAP 0706 (2007) 026, astro-ph/0703563 and astro-ph/0702653, constitutes a misnomer. Rather, having instructively cast this classical problem into path integral form, the evolution equation then derived comes about as a special case of considering how the generating functional responds to variations of the primordial power spectrum.

Item Type:	Article
Divisions:	School of Theoretical Physics > Preprints
Date Deposited:	05 Oct 2017 19:23
Last Modified:	15 Dec 2022 08:35
URI:	https://dair.dias.ie/id/eprint/209

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