2002/06/21 by Kerstin E. Kunze, Mairi Sakellariadou
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Particle physics theoretical and experimental studies #astro-ph #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.66.104005
published as Phys.Rev. D66 (2002) 104005 · LaTeX file, 14 pages, 4 figures
arxiv created 2002/06/21 · openalex publication_date 2002/11/11 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Graviton production due to collapsing extra dimensions is studied. The momenta lying in the extra dimensions are taken into account. A D-dimensional background is matched to an effectively four-dimensional standard radiation-dominated universe. Using observational constraints on the present gravitational wave spectrum, a bound on the maximal temperature at the beginning of the radiation era is derived. This expression depends on the number of extra dimensions, as well as on the D-dimensional Planck mass. Furthermore, it is found that the extra dimensions have to be large.