Bouncing Universes in String-inspired Gravity

Biswas, Tirthabir and Mazumdar, Anupam and Siegel, Warren (2006) Bouncing Universes in String-inspired Gravity. Journal of Cosmology and Astroparticle Physics, 2006 (3): 9. ISSN 1475-7516

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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.

Item Type:

Journal Article

Journal or Publication Title:

Journal of Cosmology and Astroparticle Physics

Additional Information:

28 pages, 2 figures; v2: added references

Uncontrolled Keywords:

/dk/atira/pure/subjectarea/asjc/3100/3103

Subjects:

?? quantum gravity phenomenologystring theory and cosmologyphysics of the early universegravityastronomy and astrophysics ??

Departments:

Faculty of Science and Technology > Physics

ID Code:

63501

Deposited By:

ep_importer_pure

Deposited On:

19 Apr 2013 09:09

Refereed?:

Yes

Published?:

Published

Last Modified:

15 Jul 2024 13:45

URI:

https://eprints.lancs.ac.uk/id/eprint/63501