# Bouncing universes in string-inspired gravity

@article{Biswas2005BouncingUI, title={Bouncing universes in string-inspired gravity}, author={Tirthabir Biswas and Anupam Mazumdar and Warren Siegel}, journal={Journal of Cosmology and Astroparticle Physics}, year={2005}, volume={2006}, pages={009 - 009} }

We consider the effects on cosmology of higher derivative modifications of gravity that make it asymptotically free without introducing ghosts. The weakening of gravity at short distances allows pressure to prevent a singularity, producing a solution with contraction preceding expansion.

## 491 Citations

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