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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Official URL: http://doi.org/10.1088/1475-7516/2008/01/029

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: 16 Jul 2018 10:09
URI: http://dair.dias.ie/id/eprint/209

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