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Spacetime correlators of perturbations in slow-roll de Sitter inflation

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dc.contributor.author	Del Río Vega, Adrián
dc.contributor.author	Navarro Salas, José
dc.date.accessioned	2015-04-10T07:40:12Z
dc.date.available	2015-04-10T07:40:12Z
dc.date.issued	2014
dc.identifier.uri	http://hdl.handle.net/10550/42972
dc.description.abstract	Two-point correlators and self-correlators of primordial perturbations in quasi-de Sitter spacetime backgrounds are considered. For large separations two-point correlators exhibit nearly scale invariance, while for short distances self-correlators need standard renormalization. We study the deformation of two-point correlators to smoothly match the self-correlators at coincidence. The corresponding angular power spectrum is evaluated in the Sachs-Wolfe regime of low multipoles. Scale invariance is maintained, but the amplitude of C(l)could change in a nontrivial way.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2014, vol. 89, num. 8, p. 084037-1-084037-7
dc.source	Del Río Vega, Adrián Navarro Salas, José 2014 Spacetime correlators of perturbations in slow-roll de Sitter inflation Physical Review D 89 8 084037-1 084037-7
dc.subject	Física
dc.title	Spacetime correlators of perturbations in slow-roll de Sitter inflation
dc.type	journal article	es_ES
dc.date.updated	2015-04-10T07:40:12Z
dc.identifier.doi	http://dx.doi.org/10.1103/PhysRevD.89.084037
dc.identifier.idgrec	099213
dc.rights.accessRights	open access	es_ES