2008/09/10 by M. C. Bento, Bento, M. C., R. González Felipe +4
Computer Science · Physics and Astronomy · #Astrophysics (astro-ph) #Black Holes and Theoretical Physics #Computational Physics and Python Applications #Cosmology and Gravitation Theories #FOS: Physical sciences #astro-ph
paper · pdf · doi:10.48550/arxiv.0809.1679
4 pages, 2 figures, presented at the "seventh alexander friedmann international seminar on gravitation and cosmology"
arxiv created 2008/09/10 · openalex publication_date 2008/09/10 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
A simple model of quintessential inflation with the modified exponential potential e-αϕ [A+(ϕ-ϕ0)2] is analyzed in the braneworld context. Considering reheating via instant preheating, we conclude that the model exhibits transient acceleration at late times for 0.96 \lesssim A α2 \lesssim 1.26 and 271 \lesssim ϕ0 α\lesssim 273, while permanent acceleration is obtained for 2.3×10-8 \lesssim A α2 \lesssim 0.98 and 255 \lesssim ϕ0 α\lesssim 273. The steep parameter α is constrained to be in the range 5.3 \lesssim α\lesssim 10.8.