2001/11/30 by Antonio L. Maroto
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Galaxies: Formation, Evolution, Phenomena #astro-ph #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.65.083508
published as Phys.Rev.D65:083508,2002 · 16 pages, LaTeX, 5 figures. Corrected figures, new references included. Final version to appear in Phys. Rev. D
arxiv created 2002/01/18 · openalex publication_date 2002/03/29 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We consider the production of gravitinos and moduli fields from quantum vacuum fluctuations induced by the presence of scalar metric perturbations at the end of inflation. We obtain the corresponding occupation numbers, up to first order in perturbation theory, in terms of the power spectrum of the metric perturbations. We compute the limits imposed by nucleosynthesis on the spectral index ns for different models with constant ns. The results show that, in certain cases, such limits can be as strong as ns<1.12, which is more stringent than those coming from primordial black hole production.