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Bouncing Universes in String-inspired Gravity
Research output: Contribution to journal › Journal article
Published
| Article number | 9 |
|---|---|
| Journal publication date | 13/03/2006 |
| Journal | Journal of Cosmology and Astroparticle Physics |
| Journal number | 3 |
| Volume | 2006 |
| Original language | English |
Abstract
We consider the effects on cosmology of higher-derivative modifications of (effective) gravity that make it asymptotically free without introducing ghosts. The weakening of gravity at short distances allows pressure to prevent the singularity, producing a solution with contraction preceding expansion.
Bibliographic note
28 pages, 2 figures; v2: added references