1996/12/20 by S. Mallik, D. Rai Chaudhuri, Dwaipayan Chaudhuri · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Solar and Space Plasma Dynamics #hep-ph
paper · pdf · doi:10.1103/physrevd.56.625
published as Phys.Rev. D56 (1997) 625-630 · 11 pages, Latex, no figures
arxiv created 1996/12/20 · openalex publication_date 1997/07/15 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We examine the calculation of density perturbation at large scales in the inflationary scenario. The formula for its magnitude is reviewed from first principles and applied to the original model of extended inflation. Our estimate is an order of magnitude bigger than the earlier ones due to the difference in the time at which the primordial fluctuation is evaluated and to the inclusion of terms neglected earlier in the standard formula for density perturbation.