Spacetime correlators of perturbations in slow-roll de Sitter inflation
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Spacetime correlators of perturbations in slow-roll de Sitter inflation

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Spacetime correlators of perturbations in slow-roll de Sitter inflation

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Del Río Vega, Adrián; Navarro Salas, José Perfil
Aquest document és un/a article, creat/da en: 2014
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.

    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
http://dx.doi.org/10.1103/PhysRevD.89.084037
distribuït sota llicència Creative Commons de Reconeixement-NoComercial 3.0 No adaptada

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