A Comment on the Path Integral Approach to Cosmological Perturbation Theory

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dc.creatorRosten, Oliver J.
dc.date2007-11-06
dc.date2008-02-01
dc.date.accessioned2026-07-07T11:38:34Z
dc.date.available2026-07-07T11:38:34Z
dc.descriptionIt is pointed out that the exact renormalization group approach to cosmological perturbation theory, proposed in Matarrese and Pietroni, JCAP 0706 (2007) 026, arXiv:astro-ph/0703563 and arXiv: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.
dc.description2 pages, v2: refs added, published in JCAP
dc.identifierhttps://arxiv.org/abs/0711.0867
dc.identifierhttp://arxiv.org/abs/0711.0867
dc.identifierJCAP0801:029,2008
dc.identifierdoi:10.1088/1475-7516/2008/01/029
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199611
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectHigh Energy Physics - Theory
dc.titleA Comment on the Path Integral Approach to Cosmological Perturbation Theory
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