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arxiv astro-ph/0307463 v3 pith:EJCGXJ6S submitted 2003-07-26 astro-ph gr-qchep-ph

Improved Estimates of Cosmological Perturbations

classification astro-ph gr-qchep-ph
keywords scalarbackgroundestimatesimprovedsolutionstensoranisotropiesapplied
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We recently derived exact solutions for the scalar, vector and tensor mode functions of a single, minimally coupled scalar plus gravity in an arbitrary homogeneous and isotropic background. These solutions are applied to obtain improved estimates for the primordial scalar and tensor power spectra of anisotropies in the cosmic microwave background.

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Cited by 2 Pith papers

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  1. Background-independent one-loop renormalization of tensor and scalar primordial spectra

    hep-th 2026-07 conditional novelty 6.0

    UV divergences of one-loop primordial tensor and scalar spectra are absorbed by covariant and tadpole counterterms using only the universal WKB expansion of internal modes, yielding finite model-independent renormaliz...

  2. Inflaton perturbations through an Ultra-Slow Roll transition and Hamilton-Jacobi attractors

    gr-qc 2025-07 unverdicted novelty 5.0

    Numerical solutions of the Mukhanov-Sasaki equation for inflaton perturbations across a slow-roll to ultra-slow-roll transition are well described by Hamilton-Jacobi theory when appropriate solution branches and a par...