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 language | English |
|---|---|
| Pages (from-to) | 1-40 |
| Number of pages | 40 |
| Journal | International Journal of Modern Physics A |
| Volume | 20 |
| Issue number | 1 |
| DOIs | |
| State | Published - 10 Jan 2005 |
Keywords
- Accelerating cosmologies
- Inflation
- M/superstring theories