2004/11/30 by Nobuyoshi Ohta, NOBUYOSHI OHTA · 2 citations
Physics and Astronomy · #Advanced Mathematical Theories and Applications #Black Holes and Theoretical Physics #Context (archaeology) #Cosmology and Gravitation Theories #Gravitation #Inflation (cosmology) #Order (exchange) #String (physics) #String theory #Supergravity #Superstring theory #astro-ph #hep-ph #hep-th
paper · pdf · doi:10.1142/s0217751x05021257
published as Int.J.Mod.Phys. A20 (2005) 1-40 · 38 pages, Invited review to be published in IJMPA, v2: slightly expanded and refs. added, v3, v4: typos corrected, published version
openalex publication_date 2005/01/10 · arxiv created 2005/02/07 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We review the recent developments in obtaining accelerating cosmologies and/or inflation from higher-dimensional gravitational theories, in particular superstring theories in ten dimensions and M-theory in 11 dimensions. We first discuss why it is difficult to obtain inflationary behavior in the effective low-energy theories of superstring/M-theory, i.e. supergravity theories. We then summarize interesting solutions including S-branes that give rise to accelerating cosmologies and inflationary solutions in M-theory with higher order corrections. Other approaches to inflation in the string context are also briefly discussed.