Accelerating cosmologies and inflation from M/superstring theories

Nobuyoshi Ohta

Research output: Contribution to journalReview articlepeer-review

103 Scopus citations

Abstract

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.

Original languageEnglish
Pages (from-to)1-40
Number of pages40
JournalInternational Journal of Modern Physics A
Volume20
Issue number1
DOIs
StatePublished - 10 Jan 2005

Keywords

  • Accelerating cosmologies
  • Inflation
  • M/superstring theories

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